A '68-'69 50W

Get support and show off your MetroAmp 50 Watt kit builds.

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ReidarNikolai
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Posts: 70
Joined: Tue Mar 13, 2007 2:01 pm
Just the numbers in order: 13492
Location: Norway

A '68-'69 50W

Post by ReidarNikolai » Wed Jun 13, 2012 3:51 pm

Hi all
I call all my repro builds a Metro and thid is not really a Metro build but would not have been made without this community :rock:
A long time ago I asked Brian Wallace which 50W was his favorite. He pointed me to this; http://marstran.com/68%2010513.htm" onclick="window.open(this.href);return false;. which he happens to own.
Anyway; I remembered Michael Doyle stating that the 68-69 50w was also his personal favorite so I decided to give it a try..
Here it is; Marstran chassis,trannies and choke. Sparky front. Valvestorm rear. Brian H. board. Mojo cab - I think. All new components..
It's a truly cool amp that have much gain on tap - but sounds great. It's wide open on all controls and this is the first amp I've made/owned which sounds best that way.
BTW I forgot to install the bright cap and made a bias circuit with a pot - apart from that it should be a faithfull replica of Brians amp.
Pics below :)
Image
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JTM45/100
JTM 100 Black Flag
12000

Soldano SLO
Soldano/Caswell X99
Groove Tubes Trio
VHT Classic
VHT 2150

Tone King Falcon

shakti
Senior Member
Posts: 2053
Joined: Tue Apr 05, 2005 9:06 am
Just the numbers in order: 7
Location: Ramnes, Norway

Re: A '68-'69 50W

Post by shakti » Thu Jun 14, 2012 3:17 am

Ver nice, Reidar! I'm working on mine which will be a replica of the exact same amp, funnily enough. I see you've mounted the impedance and voltage selectors from the rear. Never thought to do it like that, but it looks very cool and more vintage!
JTM45 RS OT, 1973 18W, JTM45/100, JTM50, JMP50 1986, JMP100 "West Coast", AC15, AC30, BF Super Reverb, Boogie Mk 1, Hiwatt CP103, DR103

ReidarNikolai
Senior Member
Posts: 70
Joined: Tue Mar 13, 2007 2:01 pm
Just the numbers in order: 13492
Location: Norway

Re: A '68-'69 50W

Post by ReidarNikolai » Thu Jun 14, 2012 8:37 am

I thought that was a nice touch - yes 8)
It required some work on the selectors because the small brass bolts are not long enough. The Valvestorm rears are thicker than for example Georges - but it ended up looking very very good - so it was worth it.

What pre tubes should I try for this amp??
I have; RFT, Telefunken, Sylvanias, Raytheons, Brimar, Mullard and RCA's...

Thanks
Reidar
JTM45/100
JTM 100 Black Flag
12000

Soldano SLO
Soldano/Caswell X99
Groove Tubes Trio
VHT Classic
VHT 2150

Tone King Falcon

shakti
Senior Member
Posts: 2053
Joined: Tue Apr 05, 2005 9:06 am
Just the numbers in order: 7
Location: Ramnes, Norway

Re: A '68-'69 50W

Post by shakti » Thu Jun 14, 2012 9:59 am

I'd try Mullard or Brimar in V1, Brimar or RFT in V2, and Telefunken in V3.
JTM45 RS OT, 1973 18W, JTM45/100, JTM50, JMP50 1986, JMP100 "West Coast", AC15, AC30, BF Super Reverb, Boogie Mk 1, Hiwatt CP103, DR103

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