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In Reply to: RE: 6V6 & Heathkit W5m Peerless 16309 Output Transformer posted by sony6060 on January 18, 2017 at 08:46:16
PPP means; push pull parallel. In said condition you need a xfmr with half the Z you are using. 16309 is a 10Kohm xfmr. PPP 6v6s need about 4-5Kohm.
Also, what is the total Ip. More than 120ma will exceed the design of the 16309s; that's 30ma/tube. You can exceed that by 10-15% but somewhere along the line you will run into overheating problems.
Follow Ups:
PPP 6V6 is completed with Dynaco ST-70 transformers. This is a new PP 6V6 build with Heathkit W5m transformers.
6v6 tubes suck you dont want those :)
rolls eyes :
6V6 triode is better than 45 tubes. Like others stated, 6V6 triode are great. You must have had some really bad 6V6 amps with tiny open frame audio transformers.
Sony this was a Joke! the point was that THEY DONT SUCK lol
sorry guys just little levity
Lawrence
Oh, thought you believed 6V6 suck. 6V6 can suck in a lousy amp like any tube can in a lousy amp.
I suspect this 6V6 amp is going to be great with the Peerless 16309 audio transformers.
How much power do you project out of a PP 6v6 amplifier?
Lawrence
6 watts RMS triode out, 12 watts RMS tetrode out. Have not decided if I will install a triode/tetrode switch.
man if i could get an honest 20 watts i would build one myself
but I dont want to parallel tubes either
Lawrence
8x 6V6 per channel is 24 watts triode & 48 watts tetrode. 6V6G tubes are so expensive, but you can buy Sylvania CHS 7C5 (same Sylvania 6V6G tube). Do not buy non CHS Sylvania 7C5.
The Sylvania CHS 7C5 & Sylvania 6V6G are the best sounding 6V6 ever made. In fact, I would not consider other brands. NOS 7C5 show up on ebay for $10 per tube,
I have an idea. The metal 6L6 is the most linear 6L6 ever made. The 6L6G 6L6GB & 6L6GC are different tubes and not as linear. The 6L6 metal tube is similar to 6V6 in triode. At 350 volts plate you would get close to 20 watts in triode. Fixed bias is about -27 volts. Perhaps 18 watts. Change 5965 to a 6SN7 or a cheaper 7N7. Use another 7N7 to drive both phase splitters.
Edits: 01/19/17
if we could talk/email outside the forum that would be great!
lawrenceharasim@gmail.com
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