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Messages - SpareRibs

#1
Hello,
Success !!!!! I cranked up the amp today. The reverb tank really adds depth and richness to the sound. I was amazed that it took away all of the solid state brittleness. It really sounds as close to a tube amp as I am going to get for less than $150.00.
I can't thank everyone enough for all of the input and assistance through all of this. With all of the soldering and
grubbing around for parts it finally came together pretty good.
I don't know how to download sound clips, or even record on the computer. I wish, because I would like to share the results with everyone.
Thank all of you again.
#2
Hello,
I will post them as soon as I am finished. I spent the day today repairing a tire. It had a self tapping screw in it that I didn't see for a few days. It kept losing air. The only tire shop here (Les Schwab) in town is constantly backed up. Any way they wanted $13.50 to take it off the rim and put a patch on from the inside, when they could get around to it. I just went to the auto parts store and bought the old fashioned kind of tire plugs. I hadn't used them in years and wasn't sure they were still available. I am surprised they were.                                                                                                                                      I spent a few hours today going over the circuit of the Squier amp to be sure all of the electrolytic capacitors were facing the right direction one by one, all of the resistors were in the right positions, and of the proper value.
So it all checked out. It will probably be ready for final assembly tomorrow. I still have to mount the reverb tank in the cabinet. The holes have to be drilled, and the tank mounted, and length of in and out leads determined. So until tomorrow.
#3
Hello,
It is housed in a new cabinet. I made it out of 3/4" x 8" pieces of pine shelving. To install it in the original cabinet I removed the bottom and used two pieces of wood 3/4" x 2" to add an extension to fit the speaker.
#4
Hello galaxiex,
Yes you did. I said before on this forum, I am not as knowledgeable as most of you guy's. I thought I looked over the board thoroughly, but I guess not.
When I looked at the bottom of the PCB board it may as well have been the Nazka lines.
I was also looking in the area of the first jumper hole for the other one. It was completely on the other side of the PCB
between two large capacitors, surrounded by a lot of other things.
I will try to be more thorough next time.
#5
Hello,
I finally found the solution to the jumper. Another circle with an arrow was between C27 and C28. there are a number of connections in that small area, so in my infinite wisdom I was looking to hard to see anything. Those two are undoubtedly to be connected to complete the reverb circuit because the new one goes to the common coming off of the transformer.
Anyway here are the pictures I took of the PCB on both sides.
I will now jump between the two on the top side with a piece of single strand wire, and continue soldering on the rest of the components. Finally.
Enzo, I owe you a can of Van Camp's
Thank You to everyone involved so far, its been a long project, and its not over yet.
#6
Hello,
Thanks Enzo that makes sense. Now that makes it powered up, and the other would naturally be ground.
#7
Hello,
Here it is. Hope it helps.
#8
Hello,
galaxiex, The hole in the upper left hand corner where you placed the arrow has nothing behind it, no copper leading to it, nothing. There are no more J's anywhere on the board.
The hole for the jumper wire has a circle around it with an arrow pointing directly to Q101.
Would the jumper wire possibly go to the emitter of the Q101 as that would feed the input for the reverb tank ?
Also why doesn't the jumper wire show up on the schematic ?

#9
Hello,
Well OK here goes.
#10
Hello,
While I am moving right along with the transition, there seems to be a jumper wire that I do not know what it jumps to. It is right below the Reverb in and out.
I am under the impression it ties into Q101 somehow. I would appreciate any thoughts on the matter.
#11
Hello,
Be that as it may, to have the exact parts will give me a better chance of the whole circuit working.
I know you are probably right however, I do not know which piece would be compatible and if not why. Given that I would be building a problem into it as opposed to improving upon it.
I know it seems simple to you but to me its step by step until the results are achieved.
I look at it as rebuilding an engine it,may look fine and turn over, but will not start because the wrong camshaft was installed.   
#12
Hello,
Yeah!!! Today I got a D313 transistor. It came from our local audio electrical supply. He didn't have the (2) 2SC1815's I needed. He wanted to sell me a substitute but I wanted the exact part because I am following the schematic exactly and, I do not want any variables to pop up.
Still waiting on the reverb tank, should be here any day.
#13
Hello,
Yes DigiKey does have them, price less than $1.00, Shipping $8.00. I am working on a budget amp on an economy budget. That is one of the things that infuriate me, there low prices, and the massive shipping costs.
Thank you for your effort, but I have to look locally.
#14
Hello,
I mistaken 2SC1815 is what I actually intended type. I will be going to our local electronics supplier today to see  what he can come up with.
The 2SC1815 is listed as obsolete by Mouser.
Thank you.
#15
Hello,
I am ordering a Accutronics Reverb tank today. It will be new so there should be no problems with that however, the transistors 2SC1815 on the Mouser website come up as obsolete. Now what ?