Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Diverted on February 12, 2020, 06:19:35 pm
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Hoping someone here has one of these little single ended amps.
I've heard great things about the true vibrato circuit and a friend of mine just gave me two of the correct varistors, NOS, to build this. I would like to recreate the amp but could use some measurements and photo angles I can't find anywhere online. If anyone can help me out I'd appreciate it!
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Hope this can be of some help
https://www.magnatoneamps.com/210.html (https://www.magnatoneamps.com/210.html)
Schematic
Refer to either the 210 or 410 schematic. The 210 version is hand drawn by CJ Poulos, and the 410 is a Estey drawing of nearly the same circuit. Note that CJ's comments about the 6V6's cathode grounding is correct.
Magnatone 210 or 410
The 410 only differs in having a bright switch and a bigger cab with two speakers.
https://www.magnatoneamps.com/schematics/magnatone_210+.pdf (https://www.magnatoneamps.com/schematics/magnatone_210+.pdf)
https://www.magnatoneamps.com/schematics/magnatone_410.pdf (https://www.magnatoneamps.com/schematics/magnatone_410.pdf)
(https://i.imgur.com/lYKZjbt.jpg)
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I don't know how accurate are this layouts (I found them right now)
(https://i.imgur.com/MoeqZ0m.png)
(https://i.imgur.com/zl3dMln.png)
(https://i.imgur.com/C2T2nps.png)
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https://www.tdpri.com/threads/next-4-ish-builds-and-magnatone-210-410-discussion.511523/ (https://www.tdpri.com/threads/next-4-ish-builds-and-magnatone-210-410-discussion.511523/)
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This is a 410
(https://i.imgur.com/wnKUdhe.jpg)
(https://i.imgur.com/Zh6ZRRV.jpg)
(https://i.imgur.com/TPzzqZZ.jpg)
(https://i.imgur.com/m0cIRSg.jpg)
(https://i.imgur.com/pfi6tHt.jpg)
(https://i.imgur.com/Kacae2F.jpg)
one other 410
(https://i.imgur.com/Gz9TVK8.png)
Franco
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Excellent! Great stuff, thank you. And that schematic is so much better than the one I’d been looking at.
Thanks,
Ted
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If you decide to build this little amp look closely at the uncommon NFB circuit. It will be very easy to get that wrong.
Just curious... Why the interest in the 210? There are several other two varistor models that are more popular and have a lot more info available. The 213 Troubadour is a very popular model.
I built a M2 Custom which is another two varistor model. My reason for choosing it was because I had a Hammond AO-44 amp which is very similar to the M2 power amp. It's a little push/pull 6GW8 amp.