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Author Topic: Inappropriate Amp gas  (Read 3624 times)

msplines

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Re: Inappropriate Amp gas
« Reply #15 on: January 31, 2012, 10:30:24 PM »
Do you know what valves are fitted? - perhaps yellow jacket or similar adaptors for EL84s could be good for pain free lower volume cranking.

sgmypod

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Re: Inappropriate Amp gas
« Reply #16 on: February 01, 2012, 02:11:23 PM »
Nice buy wez, always loved sound of these, never found one in good enough nick to buy though
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WezV

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Re: Inappropriate Amp gas
« Reply #17 on: February 01, 2012, 09:39:44 PM »
well i picked it up tonight.

I am happy.  It does have a bit of background hum i want to get sorted, but it is just background noise and no where near as bad as i was expecting.  the pots are just a bit crackly from lack of use.  cosmetically its almost perfect, just a bit of muck here and there

will have a proper look inside at some point but i doubt any original valves are still in there - he mentioned it had been serviced about 7 years ago and had some caps replaced at that point.


very happy, especially for less than £150  :)

Ian Price

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Re: Inappropriate Amp gas
« Reply #18 on: February 01, 2012, 11:36:36 PM »
very happy, especially for less than £150  :)

 :o

Sounds like an absolute steal!
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38thBeatle

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Re: Inappropriate Amp gas
« Reply #19 on: February 02, 2012, 06:12:36 AM »
I am sure I remember someone someone I played with (I can't remember who it was) having one of those back in the day. I wish I could remember more about the sound.
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HTH AMPS

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Re: Inappropriate Amp gas
« Reply #20 on: February 02, 2012, 11:25:52 AM »
well i picked it up tonight.

I am happy.  It does have a bit of background hum i want to get sorted, but it is just background noise and no where near as bad as i was expecting.  the pots are just a bit crackly from lack of use.  cosmetically its almost perfect, just a bit of muck here and there

will have a proper look inside at some point but i doubt any original valves are still in there - he mentioned it had been serviced about 7 years ago and had some caps replaced at that point.


very happy, especially for less than £150  :)

Post some gut shots and I'll tell you if the smoothing caps on the HT line are original or not.

If they ARE original, a cap job is in order.  It's worth cleaning the pots, jacks and valve bases too - Servisol lubricant spray for the pots, and non-lubricating for the jacks/valve bases.  You'll be amazed at how much snap/crackle/pop can be reduced by such simple maintenance.

It's also worth replacing the bias caps while you're at it.


WezV

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Re: Inappropriate Amp gas
« Reply #21 on: February 03, 2012, 07:03:09 PM »
Post some gut shots and I'll tell you if the smoothing caps on the HT line are original or not.

here we go





HTH AMPS

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Re: Inappropriate Amp gas
« Reply #22 on: February 04, 2012, 01:07:21 AM »
You've made out ok there Wez, those EL34s look like old Siemens ones - great midrange crunch and spit, snarly as fook  :D

The smoothing caps are the originals, but it's tough to see what kind of shape they're in.  My thoughts are that on a 40+ year old amp, it makes sense to replace all the filter caps.  Also do the bias cap while you're at it. 

Looks nice and clean inside too, makes a change for Selmers which are normally woefully looked after.

WezV

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Re: Inappropriate Amp gas
« Reply #23 on: February 10, 2012, 01:54:11 PM »
Well a service and any mods may have to wait a few weeks, but i just borrowed some TAD tone Bones from a mate which  are a plug and play option to reduce this down to about 8w. 

BAsically the EL34's get swapped for 84's.  but since it doesnt need to be re-biased to do the EL34's can be slotted back in at any time

Its still loud, as 8 valve watts should be - but the first 3rd of the volume sweep is now suitable for home use as opposed to just turning it on its lowest setting.

I think the Tone bones along with a PPIMV should let me get the most out of the amp at home volumes.  Whilst it may be changing the amps character a bit its still bloody nice and the stock sounds are still available if needed.