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I'm sure there is another thread or ten on here about this, but I've not been able to figure it out. With minimal equipment, how does a person measure chokes in a Maco 200. The choke on the tag strip feeding the driver and the one on the tank coil underneath are the two I'm talking about. The...
Thanks for the list of approved capacitors! if I were an audiophile i would use these some of these brands. Actually I do have a bunch of Nippon and nichion caps, but I got a great deal on the brand I mentioned. They fit nicely where the OEM caps did and perform well, subpar and all. After all...
Thank you for that @nomadradio. I was assuming larger capatance would filter better and assumed there would be more draw on start up but wasn't for sure. That explains the brief thump from the trannys when turned on. I did try to keep the numbers the same so I could use the secondary for the low...
@Onelasttime lol no I don't use craptastic caps. I don't go back with Mallory axials but I use ELUM brand radials and they seem to work just fine for my cheaply built amplifiers, and much more cost effective. I can replace those 4-1 over Mallory.
My terminology of "strung together" seems to...
Well there it's is. I've not been using 5408 diodes. Operator error indeed. I'm recapping a Maco 300 and thats why those little 4007's have been popping. I will 'rectify' that when I get home.
Lord I hate spell check or predictive text on this site. Reading my last response made no sense at all. This is the only site that does that on mobile.
Yeah I'm learning myself. I've always replaced with what wasn't in there but it still expensive as hell to run all the same axial caps when you can string larger value radials and us each half the amount. I was just making sure my math was feasible or if the more capatance would screw with...
I have noticed when I do re-cap these older amps, most had 4007 diodes for the bridge. If I use larger amperage diodes, the HV transformer grunts really hard. I switch back to 4007 and all is well. Of course still a newbie to tube amps, I'm probably using the wrong diodes.
ok folks, I may have a hum drum question for the considerable minds on this forum but here goes... when re-capping an amp, do I need to go back with the exact same caps and values in the filter caps or can the be played with? Say one had 4 100uf 450v strung together, could I use a couple 220uf...
Yeah we've got a few here that have the Brownings with the capacitor in it amd the key up is so annoying. A roger beep or something is alright but lord those toys can get aggravating
Yeah that sounds right, the power switch is always hot. Was just too much to wire in that small area and look decent. I wasn't gonna try lower voltages first to be sure it even still worked. I figured no harm in that approach, but was proved wrong. it's a good end to it anyway, I despise toys...
Well after wiring the toy up, I lost all output in the radio Trying to finding 12 volts proved a bit difficult so I first tried 9 volts and nothing happened. Then I found 13.4 and added some resistance to get it 12.3 volts. As soon as I powered the radio, a resistor by the audio transformer...
Plead the 5th? that's comforting I will get it wired that way in a bit. working on another signal sampler to use in testing, at the moment. Thank you sir!
Yeah I bought a bunch of 2166, 2312, 1969 and 1869. They were dirt cheap so what the hell. All of them save one 1869 were dead. Now I did get some 1945's for a President that were good, but that's been it. Have had much better luck with stateside distributors on eBay with their transistors. And...
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