mdr30
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Everything posted by mdr30
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Thanks for info - seems the voltage was just at the limit of the regulator's range. Changed back to original 1,5K resistors (from 1,8K) so now DC out is 19,5V (before 21,5V) from a AC18V transformer. All leds are on. Problem here is the mains moving from 210 to 230V and those swings seem to affect the whole GRLV system.
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Leds close to big caps light up, then dies. Same thing when powering up once again. Other leds unaffected. Amp boards OK (Dynalo). Any ideas what it could be?
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Is the amp sensitive to pulling the headphone plug while playing?
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Hi,
Built a Dynalo, a KGDT coming up and also a SS Dynahi.
It's great that you publish your fine designs to us diy folks out here.
The SS Dynahi: you wrote in one of your posts that you'd try to cram it into one box, that's what I'm hoping for. Did you find a suitable case? I've got two psu:s and transformers.
Cheers
Stefan
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Got a regular 24v psu (no minus voltage), 100k vol pot and a small case. Best amp to build?
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Do MPSA06/56 work for the output stage or do they burn? Any MPSW06/56 stashed away?
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I'm tempted to build this to get an amp that can drive my old orthos once and for all. Does anybody have boards, and is there a one box compact version?
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Has anyone built this balanced beast and tried it out?
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Thinking wear and tear. Don't want these pairs of 3pin xlr anchors hanging down my neck.
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Anyone tried a mini xlr as headphone out?
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Is this amp powerful enough to drive vintage orthos, insensitive beasts - often heavily damped as well - that crave current?