Old Warrior (NO! Not me!)
Greetings all: I am looking for a Heath Warrior that has been mostly trashed out. Mainly I need chassis parts. Funds are limited. 73, Mike, W5UC
By
Mike(W5UC) & Kathy(K5MWH) <w5uc@...>
·
#1057
·
|
FW: NOS cermic-metal tube burn in
Because he adjusted the BIAS to make the 400-500 ma of resting plate current. You have to very closely read his message. There's a very slight language barrier. That's why I'm wondering a couple
By
Robert B. Bonner <rbonner@...>
·
#1055
·
|
Re: NOS cermic-metal tube burn in
I wondered about that problem after I clicked Send. However, if the tubes will draw 500mA, there can not be a lack of emission provided they do that briefly at 0 grid volts. I've seen a number of
By
R L Measures
·
#1056
·
|
Re: NOS cermic-metal tube burn in
RL, Because he adjusted the BIAS to make the 400-500 ma of resting plate current. You have to very closely read his message. There's a very slight language barrier. That's why I'm wondering a couple
By
Robert B. Bonner <rbonner@...>
·
#1054
·
|
Re: NOS cermic-metal tube burn in
So why is there 500mA of anode-I?
By
R L Measures
·
#1053
·
|
Re: NOS cermic-metal tube burn in
Hsu, 200 watts out, it sounds like he is not getting adequate RF drive to the finals. Its been a long time since I've tuned up a KWS-1. The ones I worked on (back in the 70's) were both 4X150 powered
By
Robert B. Bonner <rbonner@...>
·
#1052
·
|
Re: Pseudo Grid Current
Does the choke exhibit a self-resonance c. 95MHz when it is in place?
By
R L Measures
·
#1051
·
|
Re: NOS cermic-metal tube burn in
My guess is that the wattmeter is in error.
By
R L Measures
·
#1050
·
|
Re: Pseudo Grid Current
It's a possibility that the reason the plate choke did what it did was over the amp being ran at a frequency where the choke would have went self resonant. If it looked like someone had been playing
By
craxd <craxd@...>
·
#1049
·
|
Re: NOS cermic-metal tube burn in
Screen PS V=350V, anode PS V=2kV. they are in Collins KWS-1. My friend have been burn in for 2 hours, the bias crrrent has ben increase to 100ma, and can get more (400-500ma) current, I think the
By
Hsu <Jbenson@...>
·
#1048
·
|
Re: Pseudo Grid Current
repairing in over. This supply) that (.1?) cap at the correct for #### Whoa. I'll be damned if I can find my henry 3k/8k ultra manual. IF u had a flash over between plate choke and chassis.... it
By
pentalab <jim.thomson@...>
·
#1047
·
|
Re: Pseudo Grid Current
By
R L Measures
·
#1046
·
|
Pseudo Grid Current
OK, I need professional help. I got a basket-case Henry 3K Ultra some time ago and have been repairing in my spare time. Amongst the defects it had, was a plate choke flash-over. This took out the .5
By
jmltinc
·
#1045
·
|
Re: [Amps] Variable capacitors and 4CX250B FS
Sorry, make incorrect, WxHxD not include shaft's length.
By
Hsu <Jbenson@...>
·
#1044
·
|
Variable capacitors and 4CX250B FS
I have 20 NOS Variable capacitors, one is 1400PF/1kV(0.65mm spacing ), another one is 200PF/3kV(2mm spacing ). a set of capacitors(1400P/1kV+200P/3.5kV)=$80, include shipping.WxHxD=92mmx87mmx85mm(
By
Hsu <Jbenson@...>
·
#1043
·
|
Re: Inrush filament current protection
No electrical difference here; but if the breaker box is to be used as a sub-panel, you need seperate bus bars for the neutrals and grounds with a removable shorting strap between the two. Only in the
By
Phil Clements <philc@...>
·
#1042
·
|
Re: Inrush filament current protection
I get along with my guy very well for the reasons you stated. Life is short and best to get the inspector out of it ASAP. "Robert B. Bonner" <rbonner@...> wrote: Yeah some of these guys interpret
By
FRANCIS CARCIA <carcia@...>
·
#1041
·
|
Re: Inrush filament current protection
Yeah some of these guys interpret the code differently¡ Have their own opinions. That¡¯s why there are lawyers and judges, hahahaha My local inspector considered the water pipe as the real
By
Robert B. Bonner <rbonner@...>
·
#1040
·
|
Re: Inrush filament current protection
See below ________________________________________ From: ham_amplifiers@... [mailto:ham_amplifiers@...] On Behalf Of KR4DA Sent: Monday, November 13, 2006 10:31 AM To:
By
Robert B. Bonner <rbonner@...>
·
#1039
·
|
Re: Inrush filament current protection
Not in California, it's set at 228v to 240v by the PUC. I do not believe everything in any book.
By
R L Measures
·
#1038
·
|