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Vintage threads from the first ten years
| previous: Bob DeRosa Thanks for the reply Dirty, |
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Re: Matchless Clone
 12/3/2003 9:51 PM |
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| Joe CA | Re: Matchless Clone My DC-30 needed about 1.5k to get the screens under 300Vdc. I completely removed the 100ohm CC resistors and used 3W metal film. I've never touched the Cathode resistors and my idle dissipation is about 14W per tube. I got JJ's from Bob@eurotubes.com that he rated "medium" and they seem to be just about right with the stock cicrcuit. Amp sounds great and the tubes have lasted much longer than before I tamed those screens. If you need any layout photos or advice from a genuine C-30 lemme know. I have a digital camera and can host/post photos. I used the C-30 as a guide while building my Spitfire clone and it made everything so much easier and better! You can also dramatically improve hiss, microphonics & noise over stock Matchless by using metal film resistors for the 68k & 1M input resistors. |
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| Bob DeRosa Thanks Joe, |