Does anyone know if Peter Dahl (I think thats the correct spelling) has a website, if so do you have the address handy? Thanks in advance. Kurt, K3KL... -- FAQ on WWW: http://www.contesting.com/FAQ/a
Hi Fellas, A question for you High Voltage Transformer Guru's. I have an unlabeled transformer. I have found the primary windings. This transformer can be powered by 120 or 240 volts. Heres the quest
Thanks, I used all the information provided. I used a low voltage transformer to the HV secondary (with small fuse inline). Found out all I needed to know. Then I used the same small voltage transfor
A question for you power supply guru's !!! I received a Yaesu FL-2100 B amplifier. The inerds looked pretty ancient. I guess they should for a 30 yr. old amp. I replaced the rectifier diodes with 1N5
I forgot to mention that this is a Full Wave Voltage Doubler Rectifier, I mentioned that I used 1N5408's as replacement diodes, I was wrong I used UF3010/HER307 plastic pasivated ultra fast diodes wi
Thanks to all who responded to my dilema. I removed the filter caps from the PC boards and found that someone had placed three in backwards, in other words the polarity was reversed. The caps that ar
I'm looking for a light to medium duty ceramic switch for the input of an amplifier. it would have to be a 2 Pole, 5 or 6 position rotary switch, for my plans. Does this sound like overkill to handle
This one is for the High Voltage Power Supply Guru's. I have a transformer thats secondary is 1100 volts.Theoretically a full wave doubler would give me 2.8x equaling 3080 volts. Is this the real vol
I came accross an amplifier that uses several 8902 tubes. Can anyone tell me if this tube has a more popular designation, one that would be more recognizable, I think it may be a type of sweep tube b
Does anyone know of a source for reprints of Heathkit Assembly and/or Users manuals. Thanks in advance for your responses. Kurt, K3KL... -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions:
Would it be possible to operate a 572-B tube for SSB at 1800 volts, I realize the lower output, that I can put up with. Thanks in advance for any info. Kurt... -- FAQ on WWW: http://www.contesting.co
Lately I have seen a new generation of High Voltage Capacitors. The ones I'm looking at are in the big three electronics catalogs. They claim good operating temps and tolerences. The ones in particul
Can anyone tell me about the Dentron MLA 2500 Amplifier? Does it have tuned inputs. Looking for general information, size, weight, etc. Were these amps any good? Also looking for pros and cons. What
If I'm using a voltage doubler circuit to obtain 2700 volts for 572-B tubes, would 12.5 mfd. be enough filtering? Also idling voltage would be 3080 volts if this turns out to be a true doubler, is th
Hello Fellow Amplifier Addicts, I really mean that in a good way. I'm trying to find a source for (4)-572-B tubes, an inexpensive source that is. It seems that E-Bay and the usual supply houses are g
Can anyone suggest what voltage should be used for bias on todays tubes. As in Chinese, Russian, USA 572-B tubes. I'm brewing a quad of 572's, mounted vertically, if that makes any difference. I'm us
My tube reference book is slightly lacking, can anyone tell me the filament voltage and current per tube of the 3CX800 thanks in advance. Kurt K3KL... -- FAQ on WWW: http://www.contesting.com/ampsfaq
Hello amplifier guru's. Does anyone have a schematic for a decent 3CX800 amplifier. Or know of a site that may have one on file. Come to think of it I haven't checked the amps archives yet. Thats nex