I have just found this on the floor of our local charity shoppe. Just an amazing find. I previously have owned a few different Tube Hi-Fi amps, one I still have in my possession is the fabulous HH Scott 222c .
here is link to the youtube video slideshow I made of the Amp :
This Dynakit may just trump that HH Scott - amp. At least without mods. The Scott I have does have some noise and needs a bit of work. This is all coincidental and not a serious evaluation.
I have not modded either and they are both stock the way I found them.
The Dynakit looks like it was factory wired, but I Can't be sure at this point.
The previous owner chucked it out as they could not figure out why the right channel is gone. I'm almost certain it's just the circuit board on the top, and just a bad cap or resistor. I'm just going to order an upgraded circuit online (there are a few choices for under $60.00) I am gravitating towards the circuit that just upgrades so I can use more common tubes -7199's are very rare now-, but still close to the stock design. Oh, the only tube missing was the rectifier 5AR4-GZ34 and as luck would have it I had one of these in my collection ( i forget what I pulled it from) and it's a seam top Japan Mullard spec'd tasty treat.
I had to reconnect a few wires under the chassis to get this running. The previous owner had tagged the wires , and looking at the guide, it was proper so I retagged them with clearer writing for kicks. (it was on decaying gooey masking tape) Took me an hour to resolder a few points, install a new power switch I took out of a very nice Lambda power supply that i extract parts from and fired it up. There was noise and hum.
When I hooked up the RCA jack on the front, that eliminated it and is super clear. There is a Very-Very low level 60-80 cycle hum present, but I have heard that in even mod'd tube amps, it seems to be something hard to get away from.
I first tested on a crappy Sony ghetto blaster speaker so I wouldn't damage anything important..after that passed fine, I hooked up the JBL Century 100.
I can only use MONO right now due to the bad circuit in the right channel..but no worries here. I listen to alot of Mono Lp's and such so It's not a worry. Just to have this running in tandem as a filler for super tight and clean powerful bass, with my Yamaha A-760 amp, is sweet as anything I have heard. So next step is to order a new board for it, and then decide what to do next. I'm not planning on modding this thing like crazy, just slightly to get it to spec and enjoy it, because if I want to mod it I will just emulate it on a different chassis. I want to keep this thing as original as possible. One thing that was weird, when I was installing the EL34's I noticed the bottom middle posts broken off 2 of the 4. I thought the tip was busted too, but thankfully they are not..the vacuum is still sealed. I did not see the pieces floating around inside. Was this done by the previous owner? if so, why? I use one on each side to be safe. one of the 7199s has DYNAKIT printed right on it! The other has Sylvania in yellow, yet they look identical grid plates, ect. Interesting! Black cat's in there original(like i said, nothing has been modded)
I absolutely feel very lucky to find this, and a great compliment to my record collection. The video shows some streaming Reggae from itunes, and then some bits from the Canadian Mono 1st Pressing of Beach Boys Pet Sounds and the band called the ID with Jerry Cole. Sorry about the short segments, my camera only takes 15 second video shots. (totally rediculous) Now I just have to find some replacement nuts and bolts as the previous owner just simply forgot or never decided to reassemble this beauty. I'm sure that's why it ended up in the Charity shoppe for a cool $15.00 - A bit about that.. I Had been in the store earlier that day, and I found a Hallicrafters Shortwave radio which I wanted very badly. IT was $15.00 too. So I went to the bank and came back. while I was loading it, out of the corner of my eye, I saw the familiar black grille of a tube amp on the floor. Someone else had TESTED This and left it!! Boy am I lucky. ANd whoever was testing it, are lucky they did not get a Shock as there were exposed wires. ANd this past week has been a lucky week for great equipment for low prices. I also got a Heathkit AUdio Scope aD 1013 a few days ago. A great compliment for the hi-fi head I am. YOu can see it briefly in the video. The preamp is a Mackie Mixer U.420d.