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Re: Stuff?

 

I? buy....'dielectric grease'? from? local auto parts store. Use? sparingly on? pin of? coax? plugs..and shield threads.? ?Wipe off any? excess.? ?Don't use? it to? fill? air voids,? like on type N? or? 7-16 din.?

I? can't tell? any difference between auto? dielectric? grease and? ?Dow? dc 3/4...? except the? auto? stuff? has? higher? V? stand off.?

Jim? ?VE7RF
?? ??
Re: Stuff?

 

Thanks Roger.

My "Stuf" will be arriving in the post today (Monday).

See

I bought 5 tubes of it from RF Parts. Other places were cheaper but they are on drugs with their international postage charges.

I have 3 friends coming to help me set up my new antennas, in two weeks time. Apart from letting them drink all my beer, I will give them each a tube of it to take home.

73, Alek
VK6APK

On 8/09/2019 11:55 PM, 'Roger (K8RI)' k8ri@... [ham_amplifiers] wrote:
I use Dow Corning's (Now just Dow Chemical ... Following merger and
buyout) DC4 dielectric compound. It is a Silicone grease developed in
WWII to seal spark plugs on B17s to prevent arcing at connections at
high altitude. It remains a grease (never hardens) EXCEPT when subjected
to an arc which causes it to decompose leaving Silicon Dioxide (powdered
Quartz) behind as do all brands of Silicon dielectric greases. It used
to be expensive, but with competition the price has come down.
With Dow buying out Corning's stake it's now just another part of Dow
Chemical so I'm not sure what's available.
All their Specialty items including RTVs have become commodities with
substantial price reductions. I retired from DC in 1997 So have little
current information. As I recall, it has an infinite shelf life even
after the tube has been opened.
AFAIK all Silicone greases are pretty much the same regardless of who
makes it.

73, Roger (K8RI)

On 8/28/2019 5:31 AM, Alek Petkovic vk6apk@... [ham_amplifiers]
wrote:

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.


--
From sunny Binningup



Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

Re: Stuff?

 

I use Dow Corning's (Now just Dow Chemical? ... Following merger and buyout)? DC4 dielectric compound.? It is a Silicone grease developed in WWII to seal spark plugs on B17s to prevent arcing at connections at high altitude. It remains a grease (never hardens) EXCEPT when subjected to an arc which causes it to decompose leaving Silicon Dioxide (powdered Quartz) behind as do all brands of Silicon dielectric greases.? It used to be expensive, but with competition the price has come down.
? With Dow buying out Corning's stake it's now just another part of Dow Chemical so I'm not sure what's available.
All their Specialty items including RTVs have become commodities with substantial price reductions.? I retired from DC in 1997 So have little current information.? As I recall, it has an infinite shelf life even after the tube has been opened.
AFAIK all Silicone greases are pretty much the same regardless of who makes it.

73, Roger (K8RI)

On 8/28/2019 5:31 AM, Alek Petkovic vk6apk@... [ham_amplifiers] wrote:

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

--
Roger (K8RI)
Re: FL-2100Z Mods

 

?
I have worked on numerous 2100Z amps including some converted to 6M and have had not needed any special mods other than to the bias supply for Svetlana tubes.
?
I have looked at his mostly off the wall mods for the SB-200 as real Hammy Hambone technology.
?
Carl

----- Original Message -----
Sent: Saturday, August 31, 2019 6:44 AM
Subject: Re: [ham_amplifiers] FL-2100Z Mods

?

Alek, I¡¯d?check and see what Tom W8JI recommends at his web page for those amps. ?I¡¯d also consider if any of the rest of the mods are a good idea as well. ?I know some are ok but some are also questionable. ?Lou

Sent from AOL Mobile Mail
Get the new AOL app:

On?Friday, August 30, 2019,?Alek Petkovic vk6apk@... [ham_amplifiers]?<ham_amplifiers@...>?wrote:

?

A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
like all the PA0FRI mods done to it.

See http://www.pa0fri.com/

This is no big problem, as most of the mods are common sense and they
are what one would normally do to an amp.

However, there is one mod that strikes me as odd.

He suggests cutting the grounding wires on VC1, the plate tune
capacitor, and running a thick wire or coax from the cold side of VC1 to
a ground point at the base of one of the 572B sockets.

This seems very odd to me. I don't see how this would enhance stability,
having that grounding wire running all that way.

Every amp I have seen or built, has the cold end of the capacitor bonded
to the nearest point on the chassis.

Should one be doing this mod? My feeling is that it should be left alone.

Opinions appreciated.

Thanks, Alek.
VK6APK

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox. https://www.facebook.com/TheVelvetFox/
Smart Design Electrical. https://www.facebook.com/smartdesignelectrical/
Perth Interiors. https://www.instagram.com/perthinteriors/


Virus-free.

Re: FL-2100Z Mods

 

¿ªÔÆÌåÓý

Very interesting Sam. Thanks for that info.

Cheers, Alek.

On 31/08/2019 10:50 AM, Svante Nordenstrom sm3dyu@... [ham_amplifiers] wrote:
Hi

I have done an amp that had suffered multiple oscillations on 10 meters and damaged the bandswitch.?

The grounding of VC1 was done according to the article and that cured the oscillation. Amp was stable and still is without burning bandswitch contacts.

It seems not all amps have the problem with instability, but if the amp you are working on Alek, have arc marks on the bandswitch, this may be the remedy.

73
Sam
HS0ZDY


On Aug 31, 2562 BE, at 07:48, GGLL guiye8@... [ham_amplifiers] <ham_amplifiers@...> wrote:

?

GN, I've made some mods to 2100B, 2100Z, etc., several.

I have never made that specific mod, all amps worked fine and stable.

What I usually do is to add extra decoupling caps in plate choke base
(4400 pF extra), plus one 1000 pF before glitch resistor; 15 ohm 10 watt
glitch resistor at rectifiers pcb; increase grid caps upto 1000 pF; back
to back 1N5408 diodes (at shunt's place).

General cleaning, resolder and checking bias pcb caps and resistor
values, lube fan motors, checking SWR diodes and its compensation, etc.

You can add in parallel the extra, not used contacts at RL1 (I ask
myself why they didn't).

Don't forget to check the HV capacitors inside the tube's cage, some may
be cracked (see the attached image).

If you need extra parameters, ratings at half and full voltage, email me.

Regards
Guillermo - LU5WE.

El 30/8/19 a las 21:18, Alek Petkovic vk6apk@...
[ham_amplifiers] escribi¨®:
> ?
>
> A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
> like all the PA0FRI mods done to it.
>
> See
>
> This is no big problem, as most of the mods are common sense and they
> are what one would normally do to an amp.
>
> However, there is one mod that strikes me as odd.
>
> He suggests cutting the grounding wires on VC1, the plate tune
> capacitor, and running a thick wire or coax from the cold side of VC1 to
> a ground point at the base of one of the 572B sockets.
>
> This seems very odd to me. I don't see how this would enhance stability,
> having that grounding wire running all that way.
>
> Every amp I have seen or built, has the cold end of the capacitor bonded
> to the nearest point on the chassis.
>
> Should one be doing this mod? My feeling is that it should be left alone.
>
> Opinions appreciated.
>
> Thanks, Alek.
> VK6APK
>
> --
> From sunny Binningup
>
> Family Businesses:
> SP Electrical.
> The Velvet Fox.
> Smart Design Electrical.
> Perth Interiors.
>
> 


-- 
From sunny Binningup



Family Businesses:
SP Electrical. 
The Velvet Fox. 
Smart Design Electrical. 
Perth Interiors.

Re: FL-2100Z Mods

 

¿ªÔÆÌåÓý

Thanks Lou.

Yes, with every amp that passes through here, particularly the Yaesu and Ameritron models, the first thing I do is get the filament volts down from 6.8v or 6.9V, to as close as possible to 6.3V.

Then a glitch resistor and the back to back diodes.

I always check the filter caps, bleeders and rectifier diodes and replace the lot, if there are signs of trouble.

A check of the parasitic suppressor resistors is always done and in the older, more well used amps, these resistors need replacing.

This particular 2100Z, is the most pristine I've ever seen. Original Cetron tubes, without a mark or speck of dust on them. The outside and inside of the amp, are like the thing has never been used. The fan blades are spotless. Just everything is spotless.

So, that's all I've done with this particular amp. I'll let the guy pick it up, as is.

Oh, it had a 2 wire mains power lead, with a US plug on it. I changed it for a 3 wire, so it could be properly earthed, to comply more closely with Aussie rules.

Thanks and 73, Alek.





On 31/08/2019 6:44 PM, Gudguyham@... [ham_amplifiers] wrote:
Alek, I¡¯d?check and see what Tom W8JI recommends at his web page for those amps. ?I¡¯d also consider if any of the rest of the mods are a good idea as well. ?I know some are ok but some are also questionable. ?Lou

Sent from AOL Mobile Mail
Get the new AOL app:

On?Friday, August 30, 2019,?Alek Petkovic vk6apk@... [ham_amplifiers]??wrote:

?

A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
like all the PA0FRI mods done to it.

See

This is no big problem, as most of the mods are common sense and they
are what one would normally do to an amp.

However, there is one mod that strikes me as odd.

He suggests cutting the grounding wires on VC1, the plate tune
capacitor, and running a thick wire or coax from the cold side of VC1 to
a ground point at the base of one of the 572B sockets.

This seems very odd to me. I don't see how this would enhance stability,
having that grounding wire running all that way.

Every amp I have seen or built, has the cold end of the capacitor bonded
to the nearest point on the chassis.

Should one be doing this mod? My feeling is that it should be left alone.

Opinions appreciated.

Thanks, Alek.
VK6APK

--
From sunny Binningup

Family Businesses:
SP Electrical.
The Velvet Fox.
Smart Design Electrical.
Perth Interiors. 


-- 
From sunny Binningup



Family Businesses:
SP Electrical. 
The Velvet Fox. 
Smart Design Electrical. 
Perth Interiors.

Re: FL-2100Z Mods

 

Alek, I¡¯d?check and see what Tom W8JI recommends at his web page for those amps. ?I¡¯d also consider if any of the rest of the mods are a good idea as well. ?I know some are ok but some are also questionable. ?Lou

Sent from AOL Mobile Mail
Get the new AOL app:

On?Friday, August 30, 2019,?Alek Petkovic vk6apk@... [ham_amplifiers]??wrote:

?

A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
like all the PA0FRI mods done to it.

See http://www.pa0fri.com/

This is no big problem, as most of the mods are common sense and they
are what one would normally do to an amp.

However, there is one mod that strikes me as odd.

He suggests cutting the grounding wires on VC1, the plate tune
capacitor, and running a thick wire or coax from the cold side of VC1 to
a ground point at the base of one of the 572B sockets.

This seems very odd to me. I don't see how this would enhance stability,
having that grounding wire running all that way.

Every amp I have seen or built, has the cold end of the capacitor bonded
to the nearest point on the chassis.

Should one be doing this mod? My feeling is that it should be left alone.

Opinions appreciated.

Thanks, Alek.
VK6APK

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox. https://www.facebook.com/TheVelvetFox/
Smart Design Electrical. https://www.facebook.com/smartdesignelectrical/
Perth Interiors. https://www.instagram.com/perthinteriors/
Re: FL-2100Z Mods

 

¿ªÔÆÌåÓý

Hi

I have done an amp that had suffered multiple oscillations on 10 meters and damaged the bandswitch.?

The grounding of VC1 was done according to the article and that cured the oscillation. Amp was stable and still is without burning bandswitch contacts.

It seems not all amps have the problem with instability, but if the amp you are working on Alek, have arc marks on the bandswitch, this may be the remedy.

73
Sam
HS0ZDY


On Aug 31, 2562 BE, at 07:48, GGLL guiye8@... [ham_amplifiers] <ham_amplifiers@...> wrote:

?

GN, I've made some mods to 2100B, 2100Z, etc., several.

I have never made that specific mod, all amps worked fine and stable.

What I usually do is to add extra decoupling caps in plate choke base
(4400 pF extra), plus one 1000 pF before glitch resistor; 15 ohm 10 watt
glitch resistor at rectifiers pcb; increase grid caps upto 1000 pF; back
to back 1N5408 diodes (at shunt's place).

General cleaning, resolder and checking bias pcb caps and resistor
values, lube fan motors, checking SWR diodes and its compensation, etc.

You can add in parallel the extra, not used contacts at RL1 (I ask
myself why they didn't).

Don't forget to check the HV capacitors inside the tube's cage, some may
be cracked (see the attached image).

If you need extra parameters, ratings at half and full voltage, email me.

Regards
Guillermo - LU5WE.

El 30/8/19 a las 21:18, Alek Petkovic vk6apk@...
[ham_amplifiers] escribi¨®:
> ?
>
> A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
> like all the PA0FRI mods done to it.
>
> See
>
> This is no big problem, as most of the mods are common sense and they
> are what one would normally do to an amp.
>
> However, there is one mod that strikes me as odd.
>
> He suggests cutting the grounding wires on VC1, the plate tune
> capacitor, and running a thick wire or coax from the cold side of VC1 to
> a ground point at the base of one of the 572B sockets.
>
> This seems very odd to me. I don't see how this would enhance stability,
> having that grounding wire running all that way.
>
> Every amp I have seen or built, has the cold end of the capacitor bonded
> to the nearest point on the chassis.
>
> Should one be doing this mod? My feeling is that it should be left alone.
>
> Opinions appreciated.
>
> Thanks, Alek.
> VK6APK
>
> --
> From sunny Binningup
>
> Family Businesses:
> SP Electrical.
> The Velvet Fox.
> Smart Design Electrical.
> Perth Interiors.
>
>

Re: FL-2100Z Mods

GGLL
 

GN, I've made some mods to 2100B, 2100Z, etc., several.

I have never made that specific mod, all amps worked fine and stable.

What I usually do is to add extra decoupling caps in plate choke base
(4400 pF extra), plus one 1000 pF before glitch resistor; 15 ohm 10 watt
glitch resistor at rectifiers pcb; increase grid caps upto 1000 pF; back
to back 1N5408 diodes (at shunt's place).

General cleaning, resolder and checking bias pcb caps and resistor
values, lube fan motors, checking SWR diodes and its compensation, etc.

You can add in parallel the extra, not used contacts at RL1 (I ask
myself why they didn't).

Don't forget to check the HV capacitors inside the tube's cage, some may
be cracked (see the attached image).

If you need extra parameters, ratings at half and full voltage, email me.

Regards
Guillermo - LU5WE.

El 30/8/19 a las 21:18, Alek Petkovic vk6apk@...
[ham_amplifiers] escribi¨®:
?

A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would
like all the PA0FRI mods done to it.

See

This is no big problem, as most of the mods are common sense and they
are what one would normally do to an amp.

However, there is one mod that strikes me as odd.

He suggests cutting the grounding wires on VC1, the plate tune
capacitor, and running a thick wire or coax from the cold side of VC1 to
a ground point at the base of one of the 572B sockets.

This seems very odd to me. I don't see how this would enhance stability,
having that grounding wire running all that way.

Every amp I have seen or built, has the cold end of the capacitor bonded
to the nearest point on the chassis.

Should one be doing this mod? My feeling is that it should be left alone.

Opinions appreciated.

Thanks, Alek.
VK6APK

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

FL-2100Z Mods

 

A local ham dropped in a Yaesu FL-2100Z amp tp me and said that he would like all the PA0FRI mods done to it.

See

This is no big problem, as most of the mods are common sense and they are what one would normally do to an amp.

However, there is one mod that strikes me as odd.

He suggests cutting the grounding wires on VC1, the plate tune capacitor, and running a thick wire or coax from the cold side of VC1 to a ground point at the base of one of the 572B sockets.

This seems very odd to me. I don't see how this would enhance stability, having that grounding wire running all that way.

Every amp I have seen or built, has the cold end of the capacitor bonded to the nearest point on the chassis.

Should one be doing this mod? My feeling is that it should be left alone.

Opinions appreciated.

Thanks, Alek.
VK6APK

--
From sunny Binningup



Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

Re: Stuff?

 

Filling the connector with a dielectric splodge is certainly a new trick to me.? Even with PL259s I've always just wrapped things in good self-amalgamating tape to waterproof it properly and have rarely had problems with water ingress even here on Rainy Island.? Most water ingress issues I've had have been due to damage to the coax outer jacket.

Still, thanks for the tip.

The real answer is of course to use N-type or 7/16 connectors?

cheers
Dave G0OIL

On Wednesday, 28 August 2019, 20:15:23 GMT-4, Alek Petkovic vk6apk@... [ham_amplifiers] wrote:


?

OK Thanks Mike and others who replied.

Jerry, WA8R, knew what I was talking about.

The stuff is called "Stuf" and it's made by Cross Devices. See

I have placed an order with RF Parts, for 5 tubes of it.

Cheers and thanks,
Alek.

On 28/08/2019 5:36 PM, n2lym n2lym@... [ham_amplifiers] wrote:

Automotive silicon dielectric grease works for me.

73

Mike


On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@... [ham_amplifiers]" wrote:

?

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical.
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.


?


?


--
From sunny Binningup



Family Businesses:
SP Electrical. 
The Velvet Fox. 
Smart Design Electrical. 
Perth Interiors.

Re: Stuff?

 

Wow, a UB50 beam hey....that antenna will work very nicely!

We just need Solar Cycle 25 to arrive.....you'll be well prepared when it
does.

Hopefully being deployed at considerable height.....I expect to hear a
sonorous signal from VK6 land when pointed easterly toward distant Adelaide!

Leigh

-----Original Message-----
From: Alek Petkovic [mailto:vk6apk@...]
Sent: Thursday, 29 August 2019 12:02 PM
To: Leigh Turner
Cc: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Stuff?

Thanks Leigh.

Yes, I bought 5 tubes, to share the postage costs, plus I know that the
3 mates who are coming down here to help build and install my Ultrabeam
UB50, (if it ever stops raining) will want some. I'll be able to send
them home with their own tube, after we've finished and the have
polished off all my beer.

73, Alek.

On 29/08/2019 10:16 AM, Leigh Turner wrote:

Indeed Alek, the stuff here is called STUF... :-)

I can vouch for its efficacy as a stable non-hardening moisture sealant
compound and it works a treat in preserving weather exposed RF connector
internals like new.

I was supplied a toothpaste-style tube of the "STUF" stuff some years back
with a Butternut antenna and coaxial hardware bought through HRO. Used
sparingly a tube of the compound lasts a long time!

Leigh
VK5KLT

________________________________________
From: ham_amplifiers@...
[mailto:ham_amplifiers@...]

Sent: Thursday, 29 August 2019 9:40 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Stuff?

OK Thanks Mike and others who replied.

Jerry, WA8R, knew what I was talking about.

The stuff is called "Stuf" and it's made by Cross Devices. See


I have placed an order with RF Parts, for 5 tubes of it.

Cheers and thanks,
Alek.

On 28/08/2019 5:36 PM, n2lym n2lym@... [ham_amplifiers] wrote:
Automotive silicon dielectric grease works for me.
73
Mike

On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@...
[ham_amplifiers]"<ham_amplifiers@...> wrote:

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup
Re: Stuff?

 

Thanks Leigh.

Yes, I bought 5 tubes, to share the postage costs, plus I know that the 3 mates who are coming down here to help build and install my Ultrabeam UB50, (if it ever stops raining) will want some. I'll be able to send them home with their own tube, after we've finished and the have polished off all my beer.

73, Alek.

On 29/08/2019 10:16 AM, Leigh Turner wrote:
Indeed Alek, the stuff here is called STUF.. :-)

I can vouch for its efficacy as a stable non-hardening moisture sealant
compound and it works a treat in preserving weather exposed RF connector
internals like new.

I was supplied a toothpaste-style tube of the STUF stuff some years back
with a Butternut antenna and coaxial hardware bought through HRO. Used
sparingly a tube of the compound lasts a long time!

Leigh
VK5KLT

________________________________________
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Sent: Thursday, 29 August 2019 9:40 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Stuff?

OK Thanks Mike and others who replied.

Jerry, WA8R, knew what I was talking about.

The stuff is called "Stuf" and it's made by Cross Devices. See


I have placed an order with RF Parts, for 5 tubes of it.

Cheers and thanks,
Alek.

On 28/08/2019 5:36 PM, n2lym n2lym@... [ham_amplifiers] wrote:
Automotive silicon dielectric grease works for me.
73
Mike

On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@...
[ham_amplifiers]"<ham_amplifiers@...> wrote:

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup



Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

Re: Stuff?

 

Indeed Alek, the stuff here is called STUF¡­.. :-)

I can vouch for its efficacy as a stable non-hardening moisture sealant
compound and it works a treat in preserving weather exposed RF connector
internals like new.

I was supplied a toothpaste-style tube of the ¡°STUF¡± stuff some years back
with a Butternut antenna and coaxial hardware bought through HRO. Used
sparingly a tube of the compound lasts a long time!

Leigh
VK5KLT

________________________________________
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Sent: Thursday, 29 August 2019 9:40 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Stuff?

OK Thanks Mike and others who replied.

Jerry, WA8R, knew what I was talking about.

The stuff is called "Stuf" and it's made by Cross Devices. See


I have placed an order with RF Parts, for 5 tubes of it.

Cheers and thanks,
Alek.

On 28/08/2019 5:36 PM, n2lym n2lym@... [ham_amplifiers] wrote:
Automotive silicon dielectric grease works for me.
73
Mike

On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@...
[ham_amplifiers]" <ham_amplifiers@...> wrote:

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

Re: Stuff?

 

¿ªÔÆÌåÓý

OK Thanks Mike and others who replied.

Jerry, WA8R, knew what I was talking about.

The stuff is called "Stuf" and it's made by Cross Devices. See

I have placed an order with RF Parts, for 5 tubes of it.

Cheers and thanks,
Alek.

On 28/08/2019 5:36 PM, n2lym n2lym@... [ham_amplifiers] wrote:

Automotive silicon dielectric grease works for me.

73

Mike


On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@... [ham_amplifiers]" wrote:

?

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical.
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.


?


?


-- 
From sunny Binningup



Family Businesses:
SP Electrical. 
The Velvet Fox. 
Smart Design Electrical. 
Perth Interiors.

Re: Stuff?

 

Hi Alek

Stuff?

You mean Splodge?? I always find that Splodge works better than Stuff.

Alternatively try Tiger Seal or similar from a motor factors.??


73

Dave


On Wednesday, 28 August 2019, 05:33:20 GMT-4, Alek Petkovic vk6apk@... [ham_amplifiers] wrote:


?

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox. https://www.facebook.com/TheVelvetFox/
Smart Design Electrical. https://www.facebook.com/smartdesignelectrical/
Perth Interiors. https://www.instagram.com/perthinteriors/
Re: Stuff?

 

Next time you see a telephone lineman, ask him for a tube of his line
sealant. Works great. But, be aware, that once sealed, it isn't coming
back apart again.

Joe - W7RKN

-----Original Message-----
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Subject: [ham_amplifiers] Stuff?

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.
Re: Stuff?

 

Automotive silicon dielectric grease works for me.

73

Mike


On August 28, 2019 at 5:31 AM "Alek Petkovic vk6apk@... [ham_amplifiers]" <ham_amplifiers@...> wrote:

?

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which
fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup

Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox. https://www.facebook.com/TheVelvetFox/
Smart Design Electrical. https://www.facebook.com/smartdesignelectrical/
Perth Interiors. https://www.instagram.com/perthinteriors/


?


?
Stuff?

 

Does anybody know where to get "Stuff?"

I'm talking about the goo that you put in coax connector joins, which fills the void in the connection and seals out any moisture.

A Google search has come up blank.

73 and thanks,
Alek.

--
From sunny Binningup



Family Businesses:
SP Electrical. www.spelectrical.net.au
The Velvet Fox.
Smart Design Electrical.
Perth Interiors.

Re: Reply from ECONCO

 

Jim, ask him if Eimac supplied tooling is used to build the Chinese 8877 and 3CX3000A7.

Carl

----- Original Message -----
From: jim.thom@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Wednesday, July 10, 2019 12:46 PM
Subject: [ham_amplifiers] Reply from ECONCO



Hello Jim,
If the Svetlana tubes have good grids then we can repair them. If the grids are bad then we don¡¯t rebuild them. We don¡¯t buy Svetlana duds so we don¡¯t normally have stock on Svetlana tubes.
As far as the Chinese duds go we can rebuild them but we don¡¯t replace seals, ceramics or anodes on them no major work. So if they are new duds then we usually can repair them at least once.
If you have any other questions please let me know.

Thank you
Matt Lindsey
Econco/Technical Customer Service
1318 Commerce Ave.
Woodland CA 95776
800-532-6626 Ext 101

## Typ, if the tube has lost emission, they re-thoriate the directly heated cathode... with
acetylene gas. With Eimac tubes, they can also replace grids, anode, ceramic... both on triodes + tetrodes. See their reply above, re: svetlana + chinese tubes.


Jim VE7RF



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