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In Reply to: RE: The last 26-26 DC 45 amp schematic .... posted by Caucasian Blackplate on January 24, 2015 at 21:20:20
Ohh, OK, it isn't !!
I could build an amp and, (as my friend Dennis Fraker likes to say), put a doorbell transformer on it, and it can outperform 95% of the tube amps out there.
Outrageous?? Not really. Do you know how to do that ?? You may !!
Jeff Medwin
Follow Ups:
I was beginning to think this was going to be a constructive discussion until I scrolled down some.....
nt
Here we go again.
maybe you can jeff... but in that same amp if you replace the doorbell transformers with hammond or mq iron it will be significantly better.
really though.. I think the doorbell transformer thing is a myth.. and I briefly scrounged for doorbell transformers after reading that line in the past too....
what core material do you suppose they use on those doorbell transformers? suppose they interleave the coil for good doorbell frequency response?
would the doorbell transformer need new leadouts?
is it possible that those doorbell transformers, with their super charged leadouts... could they possibly have an effect similiar to that which you've mentioned of octal pins? that is, an added solder joint vs a noval socket? solder joints add up!
A doorbell transformer , if it's an EI transformer will have a split bobbin and no airgap . Hence distorted bass and no top-end . If it's a toroid , it will have no airgap and play ok in the HF but have distorted bass unless cap-coupled . Add a choke for the anode load , plus a cap and the costs go above what you'd pay for a basic output transformer . You could scrimp and use a cheap PSU choke as anode choke and a line matching transformer but this is purely an acedemic excercise in attempting to save money rather than build something decent-sounding , especially when there are those inexpensive Edcor transformers out there .
Al
Well said. Awfully "straight" and thoughtful answer Al, loved it !! I just like to rile the conventional-thinking audio guys up some, every now and then, helps me maintain my image and lack of credibility, gotta remain consistent, otherwise its no FUN !! :-)
Jeff Medwin
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