MESIA ZOOM Tubeamp Schematic  [schematic]

Tube or solid-state, this section goes to eleven!
Post Reply
User avatar
Manfred
Tube Twister
Information
Posts: 1945
Joined: 04 Apr 2009, 23:42
Has thanked: 1675 times
Been thanked: 1360 times

Post by Manfred »

I had bought this amplifier in the 60 watt version in 1983 defective, the transformer was burned out. I have repaired it in the 1990 years and sold it. Now i have redrawn the very blurred original schematics on a request.
Because the transformer was defective I could not measure the transformer voltages, as far as I remember I replaced it with a Fender compatible one.
I took the shown voltages from the original circuit diagram.
MesiaZoom.jpg
MesiaZoom.jpg (37.45 KiB) Viewed 3811 times
Mesia-60-T_PRE.JPG
Mesia-60-T_PA_60W.JPG
Mesia-60-T_PA_100W.JPG
Mesia-60-T_PSU.JPG
Top
User avatar
vintagekiki
Information
Posts: 20
Joined: 09 Nov 2007, 22:59
Location: Beograd/YU
Has thanked: 27 times
Been thanked: 15 times

Post by vintagekiki »

Mesia M60T.gif
Top
User avatar
bajaman
Old Solderhand
Information
Posts: 4549
Joined: 26 Jun 2007, 21:18
Location: New Brighton, Christchurch, NZ
Has thanked: 596 times
Been thanked: 2061 times

Post by bajaman »

very M.E.S.A like ;-)
be kind to all animals - especially human beings
Top
User avatar
Manfred
Tube Twister
Information
Posts: 1945
Joined: 04 Apr 2009, 23:42
Has thanked: 1675 times
Been thanked: 1360 times

Post by Manfred »

Great, now also the transformer voltages are known. :thumbsup
Top
User avatar
lead2203
Breadboard Brother
Information
Posts: 88
Joined: 02 May 2009, 02:09
Has thanked: 1 time
Been thanked: 20 times

Post by lead2203 »

bajaman wrote: ↑18 Aug 2020, 09:05 very M.E.S.A like ;-)
More just straight up Fender style amp with reverb with some extra options just for switching the tone of the amp a bit. Even the master and phase inverter is very 70s Fender. No extra gain stage like the Boogie MK1 amps....looks like a Boogie tho...
Top
User avatar
Tubestack
Information
Posts: 1
Joined: 27 Mar 2021, 14:16

Post by Tubestack »

Hi Manfred, I've had one of these amplifiers from new, bought in late 1979, at one of the many Denmark Street (London) music shops - I don't remember which , as too long ago :D. It had some 'mods' added by the shop amp tech before delivery. Unfortunately, I did not get a list of what was actually changed, but I have been searching high and low for many years for the schematics, just in case! I always said I was going to sit down over a couple of evenings and write out the schems, but never did. So a HUGE THANKYOU for posting these. So much appreciated. :worship:
Top
Post Reply

Return to “Amplifiers”