Re: Tube socket for 3CX1500A7 tube-socket broken
According to the manual the DTR-2000L has one 3CX1500A7.? Are you thinking of the DTR-1000L?
Kim Herron W8ZV kim.herron@... 1-616-677-3706
On Wednesday, December 18, 2024 at 12:54:42 PM EST, Mike Sawyer via groups.io <w3slk@...> wrote:
Excuse me for asking but I thought the DTR-2000L had 572B¡¯s and not an 8877? ? Mod-U-Lator, Mike(y)/W3SLK ? ? ?
From: [email protected] [mailto:[email protected]] On Behalf Of Kim Herron
Sent: Wednesday, December 18, 2024 12:34 PM
To: [email protected]
Subject: [ham-amplifiers] Tube socket for 3CX1500A7 tube-socket broken ? Sorry to be a pest guys!! I've become the proud owner of a Dentron DTR-2000L amp with a broken tube socket and a missing cooling fan. This came from an estate and I'm sure that the SK was not using this amp.? I could use a suggestion on a fan, as I understand that the muffin fan was NOT a good choice for a fan. The other question is if any one here has had experience with the Chinese sockets on E-Bay.? Here's the auction number. 184967626094.? $38.50 a great price, if the thing is any good.? Any thoughts would be appreciated!
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Re: Tube socket for 3CX1500A7 tube-socket broken
Excuse me for asking but I thought the DTR-2000L had 572B¡¯s and not an 8877? ? Mod-U-Lator, Mike(y)/W3SLK ? ? ?
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Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Kim Herron
Sent: Wednesday, December 18, 2024 12:34 PM
To: [email protected]
Subject: [ham-amplifiers] Tube socket for 3CX1500A7 tube-socket broken ? Sorry to be a pest guys!! I've become the proud owner of a Dentron DTR-2000L amp with a broken tube socket and a missing cooling fan. This came from an estate and I'm sure that the SK was not using this amp.? I could use a suggestion on a fan, as I understand that the muffin fan was NOT a good choice for a fan. The other question is if any one here has had experience with the Chinese sockets on E-Bay.? Here's the auction number. 184967626094.? $38.50 a great price, if the thing is any good.? Any thoughts would be appreciated!
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Re: Tube socket for 3CX1500A7 tube-socket broken
I have good johnson sockets for 8877's. Mike
Sorry to be a pest guys!!
?
I've become the proud owner of a Dentron DTR-2000L amp with a broken tube socket and a missing cooling fan.
This came from an estate and I'm sure that the SK was not using this amp.?
?
I could use a suggestion on a fan, as I understand that the muffin fan was NOT a good choice for a fan.
The other question is if any one here has had experience with the Chinese sockets on E-Bay.? Here's the auction number.
184967626094.? $38.50 a great price, if the thing is any good.?
?
Any thoughts would be appreciated!
?
Thanks!!!
--
Kim Herron W8ZV
w8zv@...
|
Tube socket for 3CX1500A7 tube-socket broken
Sorry to be a pest guys!!
?
I've become the proud owner of a Dentron DTR-2000L amp with a broken tube socket and a missing cooling fan.
This came from an estate and I'm sure that the SK was not using this amp.?
?
I could use a suggestion on a fan, as I understand that the muffin fan was NOT a good choice for a fan.
The other question is if any one here has had experience with the Chinese sockets on E-Bay.? Here's the auction number.
184967626094.? $38.50 a great price, if the thing is any good.?
?
Any thoughts would be appreciated!
?
Thanks!!!
--
Kim Herron W8ZV
w8zv@...
|
Re: TL-922 tube filament voltage.
Hi,
?
The measured AC voltage of the 3-500Z tubes in the TL-922A as measured at the tube pins was a bit high in my amplifier, about 5.4 volts. Adding a CL-80 current limiter in series with each of the primary 0 volt lead of the filament transformer dropped the voltage to 5.1 volts in my amplifier. A side benefit is that the startup peak current is limited, helping to extend tube life. Mount the CL-80 away from nearby components as they get hot. The CL-80 is available from RF Parts or eBay.
?
I have some other TL-922 mods on my web site, .
?
73,
?
Jack, WB8BFS
?
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Re: TL-922 tube filament voltage.
That sounds like its a bit high until you figure that lots of our gear was designed around 117 volts nominal +/- 10 percent.? At + 10 percent 129 VAC COULD be considered within spec.? My voltage here varies 2 to 3 volts and the higher voltage shows up with no or light load.? The guys at Consumers Power tell me that they shoot for 123 to 125 VAC.? That would make a single phase service to a house between 246 to 250.? I've never lost anything here to overvoltage.? I have had things go away because of momentary on and off situations caused by trees in the lines and blowing line fuses.? Consumers paid for a new washer once due to that.?
?
Back to this original discussion, i.e. 5 volt filaments on 3-500 tubes:? In my mind it would've made more sense to have adjustable primary taps on the transformer so you get closer to the 5 volts.? But in engineering for the end user, everything is a trade-off.?
--
Kim Herron W8ZV
w8zv@...
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Re: TL-922 tube filament voltage.
Lou, That's pretty lucky. I should check mine. The transformer for my house is on the pole at the street in front of my house ,about 100 feet away from the house. Bob W4JFA
On Wed, Dec 18, 2024 at 5:22?AM Louis Parascondola via <Gudguyham= [email protected]> wrote:
Right, the guy said he used a Flike.? With line voltage at 252 I¡¯d be concerned about lots of things in my house.? I¡¯m lucky, I have a transformer for my house just for me!!
On Tuesday, December 17, 2024, 2:34 PM, Bob via <W4JFABob=[email protected]> wrote: Lou, Good point on the meter. In the past if you talk to any electrical company about voltage they'll ask you "what meter are you using"? Bob W4JFA On Tue, Dec 17, 2024 at 2:02?PM Louis Parascondola via <Gudguyham= [email protected]> wrote:
Updating a service really doesn¡¯t raise the actual voltage coming into your house.? The only thing upgrading does is increase the potential current available to you.? With no load on your service the voltage should not have changed.? I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment.? Before I did anything to adjust filament voltage I would make definitely sure that at the pins the voltage was more than 5.3volts.? You definitely do not want less than 5 volts. ?
On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote: Hi All,
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
?
Thanks!!
--
Kim Herron W8ZV
|
Re: TL-922 tube filament voltage.
Right, the guy said he used a Flike. ?With line voltage at 252 I¡¯d be concerned about lots of things in my house. ?I¡¯m lucky, I have a transformer for my house just for me!!
On Tuesday, December 17, 2024, 2:34 PM, Bob via groups.io <W4JFABob@...> wrote: Lou, Good point on the meter. In the past if you talk to any electrical company about voltage they'll ask you "what meter are you using"? Bob W4JFA On Tue, Dec 17, 2024 at 2:02?PM Louis Parascondola via <Gudguyham= [email protected]> wrote:
Updating a service really doesn¡¯t raise the actual voltage coming into your house.? The only thing upgrading does is increase the potential current available to you.? With no load on your service the voltage should not have changed.? I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment.? Before I did anything to adjust filament voltage I would make definitely sure that at the pins the voltage was more than 5.3volts.? You definitely do not want less than 5 volts. ?
On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote: Hi All,
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
?
Thanks!!
--
Kim Herron W8ZV
|
Re: TL-922 tube filament voltage.
Additional comments and another choice for your TL922 3-500Z filaments.
?
I just downloaded and examined the TL-922 amplifier service manual.?
I traced the input power circuit and the TL922 doesn¡¯t have any surge protection on the input circuit.?
Instead of using fixed value resistors in your filament circuit you might choose to use Power NTC Thermistors (NTC = Negative Temperature Coefficient).?
These start with higher resistance and when hot reduce to lower resistance.
E.g., for a single 3-500Z two 2 ¦¸ NTC resistors in parallel would offer 1 ¦¸ at power on and drop to 0.018
¦¸ after 130 seconds.? 10 Watts dissipation with two in parallel with a Bournes BN-LG25Y2R0Mx. A parallel pair of these for a single 3-500Z would meet your needs for a 0.5 Volt drop and offer inrush protection¡ªbut require
approximately two minutes to reach operating temperature.
?
I just measured my 240 mains voltage and the line voltage is now at 240 Volts.?
I then recalled that when I called my Electric utility (PG&E) and they came and measured my mains voltage it was 250 Volts.?
The service man said they increase the mains voltage in the summer time to better handle the Air Conditioning load.?
Not good,? I may have to rethink the values of the resistors I put into my 3CX1500A7 amplifiers.?
Don¡¯t target the exact 5 Volts but straddle the +/- tolerance limits. So, the filament voltage to ensure the summer doesn¡¯t go to high and the winter voltage doesn¡¯t fall to low.?
I have some notes about the summer line and filament voltages and I¡¯ll have to now take some notes about the winter mains and filament voltages.?
I¡¯m not going to assume it is a linear drop across the amplifier circuitry for the filament voltage.?
One of the amps is an Alpha 9500 with so called automatic line voltage selection [whose upper limit seems to be 240 volts] and the other amp is a Henry 3002A 2 Meter amplifier.
73,
Dave, w6de
?
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From: [email protected]
<[email protected]> On Behalf Of Dave w6de via groups.io
Sent: 17 December, 2024 20:02
To: [email protected]
Subject: Re: [ham-amplifiers] TL-922 tube filament voltage.
?
Ohmite offers bolt down fractional value resistors in metal casings of 10 and 25 Watt values.
For a single 3-500Z dropping 0.5 Volt at 15.5 Amp requires an 0.17 Ohm resistor and will dissipate 7.25 Watts of power.?
Bolt the down under the chassis near the base of the tubes.?
This will place the resistors in the cooling air blast for the tubes.?
Use one resistor for each tube.
?
I have two Dale 0.02 ¦¸ 25 Watt sitting here in front of me that I ordered from Mouser.?
I plan to use them in two amplifiers that have a single 3CX1500A7 tube in them.?
I too have high mains voltages that I use a Fluke meter to read.
?
73,
Dave, w6de
?
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that,
but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament
voltage SHOULD be addressed.
|
Re: TL-922 tube filament voltage.
At 252 I might be concerned about a bunch of things in your house.
On Tuesday, December 17, 2024, 3:10 PM, Kim Herron <w8zv@...> wrote: Thanks for the info Dale.?
?
Upgrading the service to the house DID make a difference.? I went from 238 to 252.? It had to do with the replacement transformer and service conductors.
BTW, I use a Fluke 87-3, same as Consumers Power.? Using the dropping resistors should work.? I'll check the voltage at the tube socket pins to make sure I've got the right stuff.?
--
Kim Herron W8ZV
w8zv@...
|
Re: TL-922 tube filament voltage.
Yeah Mikey, I concur.? I used to install copiers (50 years ago) and I had to install buck/boost transformers in certain parts of Grand Rapids MI because the infrastructure was old and the voltages were either high or low, mostly low.? On one location, I found that I was working with 89 VAC at the wall.? The copier just wasn't about to work right.? It took TWO boost transformers to get it to work.? I was complaining to Consumers power here about low voltage here.? I've got two AC units and a 6 KW booster water heater for the dog grooming shop here that my wife runs.? When everything was running my line voltage was sagging to about 106 VAC.? Light load it would come back to 115 VAC.? So they did some maintenance.? I now have 125.5 to 126 VAC per leg.? Under full load during the summer it will drop to 123 per leg.? But I don't have the big? sag and AC compressors that won't start anymore.? My air compressor isn't blowing starting fuses either.
?
I will say that I HAD to prove to Consumers that I was having an issue.? Pictures of the Fluke stuck in the wall was the trick.
?
Just came back in from the radio shop and did my daily check of the wall voltage.? 124.8 VAC
--
Kim Herron W8ZV
w8zv@...
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Re: TL-922 tube filament voltage.
Not to belabor the point but it is wise to monitor you incoming voltage and note that at times it will change. I have quite a bit of classic equipment that was designed to run at 115~117VAC. I recently purchased a Heathkit IM-103 and calibrated it with my Fluke 85 III. What¡¯s interesting to note is the incoming leg(s) is 113~117VAC during the weekdays and jumps up to 122VAC during the weekend. I¡¯ve had incoming once at 135VAC. When lights started ¡®burning out¡¯ in succession, I checked the line and contacted the power company, (PPL). They confirmed what I was seeing and rectified the problem that evening. ¡À 5% is their usual tolerance from what the lineman told me when he did the repair. It was actually a capacitor bank that fed our line so I wasn¡¯t the only one with the problem. ? Mod-U-Lator, Mike(y)/W3SLK ? ? ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Louis Parascondola via groups.io
Sent: Tuesday, December 17, 2024 2:03 PM
To: [email protected]
Subject: Re: [ham-amplifiers] TL-922 tube filament voltage.? Updating a service really doesn¡¯t raise the actual voltage coming into your house. ?The only thing upgrading does is increase the potential current available to you. ?With no load on your service the voltage should not have changed. ?I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment. ?Before I did anything to adjust filament voltage I would make definitely sure that at the pins the voltage was more than 53volts. ?You definitely do not want less than 5 volts. ?
? On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote: I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
|
Re: TL-922 tube filament voltage.
Thanks for the info Dale.?
?
Upgrading the service to the house DID make a difference.? I went from 238 to 252.? It had to do with the replacement transformer and service conductors.
BTW, I use a Fluke 87-3, same as Consumers Power.? Using the dropping resistors should work.? I'll check the voltage at the tube socket pins to make sure I've got the right stuff.?
--
Kim Herron W8ZV
w8zv@...
|
Re: TL-922 tube filament voltage.
Ohmite
offers bolt down fractional value resistors in metal casings of
10 and 25 Watt values.
For a single 3-500Z dropping 0.5 Volt at 15.5 Amp requires an 0.17 Ohm resistor and will dissipate 7.25 Watts of power.?
Bolt the down under the chassis near the base of the tubes.?
This will place the resistors in the cooling air blast for the tubes.?
Use one resistor for each tube.
?
I have two Dale 0.02 ¦¸ 25 Watt sitting here in front of me that I ordered from Mouser.?
I plan to use them in two amplifiers that have a single 3CX1500A7 tube in them.?
I too have high mains voltages that I use a Fluke meter to read.
?
73,
Dave, w6de
?
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Show quoted text
From: [email protected]
<[email protected]> On Behalf Of Kim Herron via groups.io
Sent: 17 December, 2024 17:28
To: [email protected]
Subject: [ham-amplifiers] TL-922 tube filament voltage.
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that,
but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament
voltage SHOULD be addressed.
|
Re: TL-922 tube filament voltage.
Lou, Good point on the meter. In the past if you talk to any electrical company about voltage they'll ask you "what meter are you using"? Bob W4JFA
On Tue, Dec 17, 2024 at 2:02?PM Louis Parascondola via <Gudguyham= [email protected]> wrote:
Updating a service really doesn¡¯t raise the actual voltage coming into your house.? The only thing upgrading does is increase the potential current available to you.? With no load on your service the voltage should not have changed.? I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment.? Before I did anything to adjust filament voltage I would make definitely sure that at the pins the voltage was more than 5.3volts.? You definitely do not want less than 5 volts. ?
On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote: Hi All,
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
?
Thanks!!
--
Kim Herron W8ZV
|
Re: TL-922 tube filament voltage.
Updating a service really doesn¡¯t raise the actual voltage coming into your house. ?The only thing upgrading does is increase the potential current available to you. ?With no load on your service the voltage should not have changed. ?I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment. ?Before I did anything to adjust filament voltage I would make definitely sure that at the pins the voltage was more than 5.3volts. ?You definitely do not want less than 5 volts. ?
On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote: Hi All,
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
?
Thanks!!
--
Kim Herron W8ZV
w8zv@...
|
TL-922 tube filament voltage.
Hi All,
?
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that, but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament voltage SHOULD be addressed.
?
Thanks!!
--
Kim Herron W8ZV
w8zv@...
|
Re: Smoker contamination removal (chemicals not to use)
FYI:
?
"WARNING: Never mix ammonia with bleach. This causes the release of toxic chlorine gas, which can be deadly."
?
Read ingredients of the products you are mixing.? If they have the above in any amount don't mix.
?
Dale, K9VUJ
|
Re: Smoker contamination removal
It¡¯s not worth the effort to eliminate the nicotine covering on any radio, despite the radio¡¯s value.? Your life is worth more. ? If you can return it if bought, do so.? If not trash it.? I¡¯ve done this on many over the years.? The STINK will come back despite most all efforts, but reduced. ? The only method I found acceptable was the aggressive dish washer mode.? Killed half the radios I tried in it after removing ALL susceptible parts. ? This was only on ¡°boat anchor¡± rigs.? Not sure what would happen with a more modern rig.? Probably kill it. ? -Chuck K1KW ? ? ? ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Don Roden
Sent: Saturday, December 14, 2024 1:23 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Smoker contamination removal? "Scrubbing Bubbles" will remove nicotine from metal and paint. Don W4DNR? On 2024-12-14 12:18 pm, Kim Herron wrote: That type of thing happens when you inadvertently mix an ammonia based cleaner with a chlorine based cleaner. You? get the same kind of gas that was used on? troops during WW 1.? Ain't good.? Even crap that's marketed to be used as a janitorial product can really screw you up.? I have a permanently damaged set of lungs, courtesy of USPS, because the floor cleaner they use makes people sick and mixed at high concentrations, it's VERY bad.? Don't ask how I know.? You don't recover from what I have. On Saturday, December 14, 2024 at 01:06:43 PM EST, Michael <ironcoder@...> wrote: This is an important caution below from Kim. I did mix cleaners together for a difficult cleaning. It hurt my lungs and put me in bed for a day. I did recover. I realized I was being poisoned before it permanently damaged me or killed me. Michael On 12/14/2024 11:59 AM, Kim Herron wrote: Just a caution here.? Be VERY careful about what you mix together.? It's very easy to poison yourself from a BAD reaction of the chemicals.? Just a heads up for others.? Personally I've always used Dawn dishwashing detergent in my ultrasonic cleaner.? It works just fine.? On Saturday, December 14, 2024 at 11:34:14 AM EST, Technotronic Dimensions <steve@...> wrote: Latest photo of the chassis as I am removing and cleaning each individual Just took the top bread slicer out and I have a seperate plastic container I will fill with the Fan-monia and let it soak in there a while, then I pick it up and shake it around so the stuff bubbles and does further cleaning, and repeat. Seems to loosen alot of not all the niccotine sludge. I had to suppliment the Fantastick with some stuff Wallmart sells called Purple Power, seems to be a general purpose degreaser but sold in a larger container. Along the way I found a doorknob cap had broke or maybe been defective from the factory and will have to order a new one. I know from past experience niccotine is EXTEMELY ignitable and with this amp delivering 1500W RF power with I believe 2800VDC as the plate supply, the fact its everywhere left me no choice but to be as picky as possible to get 95% or more of the amp clean. The blower fan is still in there and its loaded with the stuff. Technotronic Dimensions, VT [USA]
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Re: Smoker contamination removal
Good safety info reminders, thank you.
Meanwhile here is #2 bread slicer, before and after.
Soon as it was immersed, there was a tar film that appeared in the surface
near the bubbles, it almost instantly strips the tar right off.
I went over it with a new paint brush to get any tougher more stubborn spots
off, but I think the insides of the slicers got hit with not a lot of tar and it came off fast
but I will be inspecting it closer with a mag lamp and flashlight.
This is 66% Purple Power and 33% Lemon Amonia.
--
Steve Hearns [ KA2PTE ]
Technotronic Dimensions, VT [USA]
WWW.TECHNOTRONIC-DIMENSIONS.COM
E-Mail: Steve@...
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----- Original Message ----- From: "Michael" <ironcoder@...> To: < [email protected]> Sent: Saturday, December 14, 2024 1:06 PM Subject: Re: [ham-amplifiers] Smoker contamination removal This is an important caution below from Kim. I did mix cleaners together
for a difficult cleaning. It hurt my lungs and put me in bed for a day.
I did recover. I realized I was being poisoned before it permanently
damaged me or killed me.
Michael
On 12/14/2024 11:59 AM, Kim Herron wrote:
Just a caution here. Be VERY careful about what you mix together.
It's very easy to poison yourself from a BAD reaction of the
chemicals. Just a heads up for others. Personally I've always used
Dawn dishwashing detergent in my ultrasonic cleaner. It works just fine.
Kim Herron W8ZV kim.herron@... 1-616-677-3706
On Saturday, December 14, 2024 at 11:34:14 AM EST, Technotronic
Dimensions <steve@...> wrote:
Latest photo of the chassis as I am removing and cleaning each individual
assembly.
Just took the top bread slicer out and I have a seperate plastic
container I
will fill with the Fan-monia
and let it soak in there a while, then I pick it up and shake it
around so
the stuff bubbles and does further cleaning,
and repeat. Seems to loosen alot of not all the niccotine sludge.
I had to suppliment the Fantastick with some stuff Wallmart sells called
Purple Power, seems to be a general purpose
degreaser but sold in a larger container.
Along the way I found a doorknob cap had broke or maybe been defective
from
the factory and will have to order a new one.
I know from past experience niccotine is EXTEMELY ignitable and with this
amp delivering 1500W RF power with
I believe 2800VDC as the plate supply, the fact its everywhere left me no
choice but to be as picky as possible
to get 95% or more of the amp clean.
The blower fan is still in there and its loaded with the stuff.
--
Steve Hearns [ KA2PTE ]
Technotronic Dimensions, VT [USA]
WWW.TECHNOTRONIC-DIMENSIONS.COM
E-Mail: Steve@...
|
Bob
Dale, K9VUJ
Technotronic Dimensions