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RE: KT66 NOS Gray glass VS Reissue Gen KT66s




6L6 has a lot of similarities to the 6550 being the 6550 is like a 6L6 on steroids..Lots of similarities especially in the way they are drive and bias.
Dennis Had built some great linear amps back when he owned Dentron and Ameritron,two companies that he started..I have a Dentron Clipper and an Ameritron AL-80 but the AL-80 I have was a kit from Heathkit called an SB1000.

Dentron folded and then he sold Ameritron to MFJ in Starkville Ms. While Dennis builds some sturdy gear that is well laid out in both Amateur radio and audio,the generic power supply he uses in his audio amps are not very ideal for audio as they are in a ham radio linear amp.They are much too slow and the ESR is out of sight in those computer grade high value electrolytics.

If I were you,I would build a pair of amps and we can help you and you can use choice components..You can get pre cut,pre drilled chassis that are powder coated and then you can install the parts. The single ended amps are pretty simple and I think you would have a good time and good feeling building a couple DIY amps.

"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken


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