The Amp Garage

How about an old Dynaco 4300 ohm tranny from a Stereo 70?? Would it work with 6L6's, or should I stick to EL34's? What about a MKIII (70 watt 4300ohm) output ?
Thanks, D

Mine is not neat. I just crammed it in there (carefully) and haven't looked back. No, I won't post a picture 'cause it looks scary in there.
D

Have you tried different values for the resistor at the "tail" end of the bass control? The older amps have 1.8k and newer (Skyliner?) have 10k. I liked the small resistance when I first tried it, but it's been a few years. Just curious as to your (all of you) opinions.
D

I did a similar thing, but used a Marshall preamp on one side and a Dumble on the other. I made it so I could use the overdrive on either side. The Marshall preamp into the Dumble overdrive circuit sounds great also!!
Good luck with your project and thanks for the layout drawing.
D

My opinion only: I have played the real thing, a Two Rock, and a Top Hat. I have built 3 clones myself. All of them were different, but all are wonderful. Since HAD's product evolved over the years, I don't think any one is "closest" to the real thing. The Two Rock was restrained or constrained, if ...

My best suggestion would be to just plug them in and see for yourself. I hope that doesn't sound cold, but everyone doesn't agree on subjective things like tone. I like the V's when I need absolutely no headroom and just a creamy, soft lead tone. Also, my band mates like the V's better because they ...

Rob's got pictures, lots of pictures, lots and lots and lots of pictures..........
http://www.ma.umist.ac.uk/rl/amps/Dumble/
D

That's correct. Andy Fuchs, Two Rock, Top Hat, and others have made quite a few amps from certain unprotected designs, and they are still in business. It's too bad Mr. Dumble didn't sell all those amps himself. I certainly enjoy the clones I built for myself. The Top Hat clone I played was absolutel...

Doctor02:
Thanks for the homework assignment!! Very informative stuff at first glance. Now, back to my studies.......
dobb

I for one would love a vintage Celestion lesson. I keep hearing about green/black label, pre- and not-pre Rola, and cone types. Is there a site or reference area that I could access to do some homework? I love my '74 slant front Marshall cabinet, but know nothing about what makes it special. I know ...

Geetarpicker
Is this the same Celestion speaker you have in your box?
This is from '74. I'm pretty un-educated in Celestion lore.
D

I still can't get the videos to play. I loaded the codecs that PeteRH posted but still no-go. Help!!??
d

Funk...
Thanks for the info.
dobb

Has anyone else noticed that the first triode gain stage of the amp goes to pin 7 of V1 and also the "live" input to the PI. Pin 2 of the PI is grounded. I was curious if there was a "known" difference in why Mr. KF did it that way??----D.

Could someone please educate me about the caps I often see across power supply diodes? Why and what values?
Please excuse my ignorance as I am not formally educated in electronics.
Thanks, Dobb