Gem Venus guts, this time in point to point

This is what I was expecting in these when I got them, but the previous two were pcb:


Spent a bunch of time fighting with the Simms Watts, one channel not working. Eventually spotted that one half of the first pre valve wasn’t heating (swapping valves to check it, used one with a more visible filament. Unloaded all the voltages checked out, so must have been resistive and making a voltage drop when loaded. Replacing whole valve base fixed it, cleaning and resoldering didn’t.

Burman Pro502 combo guts




Massive parcel arrived today, caught me just before leaving:



Guts not as tidy as the others. The middle filter cap on the left is free floating, so stuff needs doing. Not gonna have a chance for a while, tons else to do.


Impedance and voltage selectors banked off. Not sure why, or how original that is, general impression this amp has had a rough life on the road.

Simms Watts AP100 guts

Pretty sparse inside these are, for such a large amp, well spread out is good:


Check out the filter caps spewing their guts, interesting it is different looking stuff on each:


Chassis topside, main thing of note is the massive resistor up there, sort of makes me thing it was planned to be a choke at some point. Guess its for cooling otherwise.


Lots of the chassis finish has turned to dandruff.

Chinese new year vacation is meaning I haven’t had a parts order in ages, running out of stuff.

White Little Rock Vintage 50 combo guts

Got impatient, still waiting on valves to arrive before I get this going properly, but had to have a look in there:


Pretty tidy, spread out, slightly more impatient to load it up and play with it, see if that translates to low noise and decent sound. Don’t forget to check out Ampstack on Facebook.

Edit: Been told by a bunch of people Bill White was the owner of White’s music shop and thus White Amplification.

Gem Venus 1×12 hybrid combo

Grabbed this since I quite liked the Gem Saturn bass head I worked on previously. Front pic in earlier post.


Unlike that Saturn, this one isn’t point to point. Preamp is SS again, power from two EL84.


some nice work with replaced caps held in with blu tac. Given it a dust, one of the valves in it was dud, stuck a couple of freshly tested ones in, and put a new plug on it. for some reason, in spite of the fact I’ve rebuilt loads of amps, wiring a plug still stresses me. Anyway, by the time I was done with that, its the middle of the night and I can’t test it.

Wem Dominator 25 MKII guts. Yay finally a new amp guts post.

The head part stripped out of a combo, got it for curiosity as much as anything. Only one preamp valve was a questionable feature.


Turns out the power valves are ECL82, thus have a preamp type section too. Even less familiar territory than I thought. Also not sure why there are two grounded shields, don’t seem quite long enough to reach both the ECL82, and one was definitely on the pre valve before it was packed.

Other end hasn’t got much going on, but might be useful to someone:


Should have a Laney AOR running tomorrow, bit late to test it now. Sound City 120 is still being noisy, pretty annoying, should be used to it by now.

Musical classified forum.

Not been updating much of late, since think there are enough pics of Laney AORs and Sound City 120s about already at this point. Good amps, and I’m not turning more away, just those are what I’ve been in recently.  Currently trying to get some more interesting things in, hence new banner, and scouting about forums and such.

On the new forums subject, check out this place, another website is shutting down its most popular feature in favour of a version they can charge for, so this is ideal to step into the gap, needs people to know about it though, free classified ads and forum type format for associated banter: