Tube Amps / Music Electronics
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The sunn still shines online!
|8/2/2000 12:37 AM|
||Pentode phase inverter|
Can anybody steer me towards a schematic for an amp that uses a pentode as a cathodyne phase inverter? Hogy
|8/2/2000 3:33 PM|
||Doesn't have to be a guitar amp, I'll take anything|
Or how about a pentode/triode tube such as a 6AN6?
|8/2/2000 3:49 PM|
Dynaco Mk III - 7199
Some Sunn amps used a 6AN8, I think, check out the schems in the Groove Tubes Tube Amp Book, they're probably on the net somewhere too.........
|8/2/2000 4:06 PM|
Nope, the Dyna MK III's used 6AN8's. I'm looking at one right now. The schematics can be found at Triode, Angela or numerous other locations. The Sunns used the Dynaco design for their power amp section.
|8/2/2000 4:13 PM|
The MK-3's used 6AN8's, the MK-4 & 6 as well as the ST-70 used 7199. The later modifiers used (I think) a 6GH8 to replce the 7199's when they became extinct. Didn't the Ampeg Gemini's use 7199's too at some point ? af
|8/2/2000 4:17 PM|
I seem to remember talking to Alan Kimmel about his pentode cathode follower a while back. Considering that a cathodyne PI is a both an anode follower and a cathode follower, there might be some information here:
Hope it helps,
|8/2/2000 3:38 PM|
||Re: Pentode phase inverter|
Look at Dynaco Mark III power amplifiers. They use a 6AN8 PI.
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