Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: vintasonic on May 02, 2024, 03:35:27 pm

Title: Can Anyone ID This Amp?
Post by: vintasonic on May 02, 2024, 03:35:27 pm
Hi

No idea what amp this is, it's obviously not US - no 120 voltage selection.  Used to have a Marshall logo but IDK.  The bit of text I can find says "CONTROLLED POWER" on the front and "_ _ _M_ R  SUPER 5" on the contol panel.  Raised letters on plastic input jacks says "Render Indus., LTD"

Any info appreciated - thanks!

Title: Re: Can Anyone ID This Amp?
Post by: Latole on May 03, 2024, 03:13:31 am
Look a European made amp .

Remove back panel and show us some pictures
There are some words under this panel
Parts looking and speaker may help too
Title: Re: Can Anyone ID This Amp?
Post by: vintasonic on May 07, 2024, 03:11:25 pm
Hi

Sorry for the delayed response, here are some gut shots. Any info appreciated
Title: Re: Can Anyone ID This Amp?
Post by: Latole on May 07, 2024, 03:14:38 pm
Right , european made .
Italian , german  G-B ?
Title: Re: Can Anyone ID This Amp?
Post by: AmberB on May 08, 2024, 01:18:20 pm
It looks like an old Marshall AC-15 to me.
Title: Re: Can Anyone ID This Amp?
Post by: sluckey on May 08, 2024, 03:24:55 pm
It looks like an old Marshall AC-15 to me.
Did you mean to say Vox AC-15?
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 08, 2024, 03:32:46 pm
Since it has a shadow of a marshall logo on the grill   one would assume it was a Marshall amp.   What model/year is the question. It's a 2 x EL84 configuration so that would seem to say it was an 18 watt or a derivative. Or it could be someone stuck a Marshall logo on this amp to cause people to think it was a real Marshall amp.
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 08, 2024, 03:38:45 pm
never mind  speaker is missing
Title: Re: Can Anyone ID This Amp?
Post by: shooter on May 08, 2024, 05:27:05 pm
the PCB, n wire wound R's look to be circa 70's
Title: Re: Can Anyone ID This Amp?
Post by: AmberB on May 08, 2024, 05:38:38 pm
I think I was wrong about my guess...as far as I know, Marshall never made a 15 watt amp, they were 18 watt amps.
Still, that part of the logo sure does look like a 15 along with 2 letters that are no longer readable.
Could it perhaps be an older Selmer amp?
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 08, 2024, 06:33:19 pm
the PCB, n wire wound R's look to be circa 70's


Right  the pcb reminds me of Ampegs pcbs from that era or a tad earlier
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 08, 2024, 06:58:53 pm
It could be a Japanese made guitar amplifier.
Title: Re: Can Anyone ID This Amp?
Post by: vintasonic on May 08, 2024, 08:02:46 pm
I forgot to add one clue.  The jacks that say "Rendus Ind, LTD" also say "Made in England".   So at least the input jacks were made in the UK.
Title: Re: Can Anyone ID This Amp?
Post by: uki on May 09, 2024, 09:38:22 am
.. Raised letters on plastic input jacks says "Render Indus., LTD"
... The jacks that say "Rendus Ind, LTD" also say "Made in England".   ...

You did mention but, is it Render or Rendus ?
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 09, 2024, 11:25:34 am
Another clue.   The yellow axial capacitors are Mullards.


https://www.ebay.com/itm/274375799695
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 09, 2024, 11:34:31 am
It looks alot like a Watkins Custom 15     Yes siree that is what it is.    Do I win a prize ?


https://www.vintagehofner.co.uk/britamps/watkins/custom15/cust1.html (https://www.vintagehofner.co.uk/britamps/watkins/custom15/cust1.html)


(https://www.vintagehofner.co.uk/britamps/watkins/custom15/cust1b.jpeg)(https://www.vintagehofner.co.uk/britamps/watkins/custom15/cust1c.jpeg)
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 09, 2024, 12:14:34 pm
Well I have to correct myself   It is a WEM Mersey 15 ..   


https://www.vintagehofner.co.uk/britamps/watkins/scout/scout3.html (https://www.vintagehofner.co.uk/britamps/watkins/scout/scout3.html)


Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 09, 2024, 12:19:50 pm
Couple of pics of another Mersey 15  Cool little amp and sure has some value.

Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 09, 2024, 12:35:59 pm
The amp was made by WEM for this store.. https://mccartney.com/?page_id=17763
Title: Re: Can Anyone ID This Amp?
Post by: shooter on May 09, 2024, 12:42:57 pm
 :bravo1:


there, the EL34 award
Title: Re: Can Anyone ID This Amp?
Post by: uki on May 09, 2024, 03:22:44 pm
You probably want this:

http://www.prowessamplifiers.com/schematics/misc/WEM-Custom_15_1965.html
http://wem-owners.com/schematics/schematics-various/
Title: Re: Can Anyone ID This Amp?
Post by: vintasonic on May 09, 2024, 06:04:52 pm
mresistor - or is it Mr Resistor?

Thanks, you are a god  :worthy1:  Now I can sleep at nite again.  Again, thanks so much, really appreciate it.

Also, I did get it powered up and it sounds really good, even with a slightly damaged speaker (voice coil rubbing a bit).  Looking forward to getting it all tidied up and rocking
Title: Re: Can Anyone ID This Amp?
Post by: Latole on May 10, 2024, 03:12:25 am
uki,

This Wen Owners site is great, I didn't know about it. I own a Wem Dominator MKIII.
Thanks for sharing.
Title: Re: Can Anyone ID This Amp?
Post by: mresistor on May 10, 2024, 07:32:09 am
Hi Vintasonic..   it was  Mr Resistor when I thought of it 


No problem  It was actually fun trying to find information on the amp, glad to help  :icon_biggrin: