Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plexi50 on March 08, 2015, 08:45:08 pm

Title: Dean Markley Signature 120 Schematic?
Post by: plexi50 on March 08, 2015, 08:45:08 pm

Just curious what this amps circuit is based on. I hear Bassman and Marshall thrown around online but would love to see the actual schematic.

Title: Re: Dean Markley Signature 120 Schematic?
Post by: John on March 08, 2015, 10:18:29 pm

Plexi, this is what I've been able to find. Most likely you've already seen these....


http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D1502.pdf (http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D1502.pdf)
http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D2528.pdf (http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D2528.pdf)


the site I found those links on:
http://music-electronics-forum.com/t19584/ (http://music-electronics-forum.com/t19584/)


http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D1527.pdf (http://www.deanmarkley.com/Info/LegacyAmps/Schematics/D1527.pdf)
that one came from:


http://www.thegearpage.net/board/showthread.php?t=292305&page=11 (http://www.thegearpage.net/board/showthread.php?t=292305&page=11)


Probably the soundest most accurate thing I read was "contact Dean Markley directly and ask".  :laugh:
Hope this helps!

Title: Re: Dean Markley Signature 120 Schematic?
Post by: plexi50 on March 08, 2015, 10:36:15 pm

Thankyou John for your research time and info. I ran across those links as well. Sort of bits and pieces of info but nothing completley dedicated to the Signature Series 120. I think i will just pull the amp from the rack and take a bunch of detailed pics. Write down what i see and create a layout.  I guess i could email Dean Markley as well and see where that takes me.  Thanks much. :icon_biggrin: