Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Backwoods Joe on January 04, 2018, 06:43:49 pm

Title: Vox AC10 SRT reverb?
Post by: Backwoods Joe on January 04, 2018, 06:43:49 pm


 
 
 
 

 


Anybody have any info on what kind reverb tank this circuit would use? THX, joe  Re: Vox AC10 SRT (http://el34world.com/Forum/index.php?topic=21791.msg231513#msg231513) 
« Reply #4 on: April 06, 2017, 05:15:08 am »
 
  • Quote (http://el34world.com/Forum/index.php?action=post;quote=231513;topic=21791.0;last_msg=231576)
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(http://i1295.photobucket.com/albums/b624/LuciMan30/AC10%20SRT/AC10_SRT_001_zpsejn5ubuv.jpg)[/list]
Title: Re: Vox AC10 SRT reverb?
Post by: sluckey on January 04, 2018, 07:05:59 pm
Get a tank with a high input z and a high output z.
Title: Re: Vox AC10 SRT reverb?
Post by: Backwoods Joe on January 08, 2018, 11:19:00 am
Thanks Mr. Sluckey. Wonder what planet the guy was from that designed this amp?
Title: Re: Vox AC10 SRT reverb?
Post by: sluckey on January 08, 2018, 11:37:39 am
The amp design is fine. The schematic drawing was surely done on the third shift!   :laugh:
Title: Re: Vox AC10 SRT reverb?
Post by: kagliostro on January 08, 2018, 01:36:53 pm
The real odd thing is the kind of Reverb Tank used by VOX

see here http://www.voxshowroom.com/uk/amp/ac10srt.html (http://www.voxshowroom.com/uk/amp/ac10srt.html)

the image that follow didn't show the AC10 SRT, but the kind of Reverb Tank is the same

(https://i.imgur.com/evl2Npj.jpg)

(https://i.imgur.com/mmZoDCB.jpg)

(https://i.imgur.com/Vg0Wdl4.jpg)

I really don't know if the VOX Reverb Circuit can drive a standard Reverb Tank  :dontknow:

Franco




Title: Re: Vox AC10 SRT reverb?
Post by: MacGwyn on January 08, 2018, 02:48:21 pm
I read somewhere that they used a single spring and a phono needle (which you can see in the photo above) to keep from paying the license fee for a Hammond or other name-brand tank.   :laugh:
Title: Re: Vox AC10 SRT reverb?
Post by: kagliostro on January 08, 2018, 03:57:44 pm
Yes that is  :icon_biggrin:


Franco
Title: Re: Vox AC10 SRT reverb?
Post by: Backwoods Joe on January 08, 2018, 05:39:23 pm
That license fee MIGHT have been money well spent!
Title: Re: Vox AC10 SRT reverb?
Post by: PRR on January 08, 2018, 08:59:08 pm
That's what I was wondering. The driver really implies a crystal transducer. But I didn't know anybody but SilverTone did that.

Cheap phono needles.... cute. You can even buy them, and they are all more alike than different for this (mis)application. Steal the springs out of a dead Hammond.