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    Here is a 2N5951 for sell......

    Here is a 2N5951 for sell...
    https://www.jameco.com/z/2N5951-Major-Brands-Transistor-JFET-N-Channel-3-Pin-TO-92-Bulk_38527.html

    Mind you though that I believe the pin out on these are different...
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    Glad to hear it's working. The thought behind the...

    Glad to hear it's working. The thought behind the light bulb limiter is that if there is a short in the amp it will react faster with lower wattage bulbs. If you use the highest wattage bulbs first...
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    Yup if you didn't have a hernia before it...

    Yup if you didn't have a hernia before it arrived, you might now.
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    You always want the transistors connected to the...

    You always want the transistors connected to the heat sinks when powering up.
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    Research and build a light bulb limiter. It will...

    Research and build a light bulb limiter. It will allow you turn on the amp and limit current flowing to the amp just in case there is a short still. If the incandescent bulb (60-100 watt) is glowing...
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    You know what the amp didn't actually smell bad....

    You know what the amp didn't actually smell bad. The amp had that 60's Fender tube amp smell to it, even though it is a solid state amp. I think they could package that scent and a bunch of vintage...
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    Thanks for the responses!! All of the small...

    Thanks for the responses!! All of the small eletros had spewed their guts out all over the place.
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    Vintage cap voltage rating question

    So I ordered a 25uf 50v cap as that's what I read on it before pulling it out. Pulled it out and it actually reads 25uf 50/60v. So my guess is that it's a 50v rated working voltage cap with a 60v...
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    Did you try the recommendation giving by...

    Did you try the recommendation giving by Alexradium??

    "disconnect all the main PT secondaries and start powering through a bulb limiter in series"

    Edit: Not that we should suspect the power...
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    It almost appears like they to the front baffle...

    It almost appears like they to the front baffle from a PA speaker and turned it sideways. Hence the cutout for a horn but yet it is sideways. Weird
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    http://https://reverb.com/price-guide/guide/382-am...

    http://https://reverb.com/price-guide/guide/382-ampeg-svt-limited-edition-1987-black
    So this is the 87 limited edition. Did they only make 500?
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    I don't know about everyone else but I would love...

    I don't know about everyone else but I would love to see some gut shot pics of this amp. Would be interesting to see how it is constructed. I am assuming that it is supposed to be a modern version of...
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    MattyX1969 I sent an email for you to send me the...

    MattyX1969 I sent an email for you to send me the picture and I would post it. Either that or you can post it with a 3rd party host and provide the link for us to view. I am running to work now. I am...
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    There is a certain quota of posts to be made then...

    There is a certain quota of posts to be made then after that you'll be granted permission to post attachments.
  15. Wish I knew this when I recently replaced those...

    Wish I knew this when I recently replaced those 22 ohm resistors on an SVT I serviced recently. If I get that amp back on the bench again I will change out those screen resistors to the higher...
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    The Yoda I think alexradium might be. The crew...

    The Yoda I think alexradium might be. The crew here is getting so good that they can even predict a question in advance of the op.
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    Okay, what have you done in the way of...

    Okay, what have you done in the way of troubleshooting so far?
    https://music-electronics-forum.com/attachment.php?attachmentid=47308&d=1519629152

    Edit: That was weird. A minute after I posted...
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    It's good enough for Jazz... oh wait a moment!! I...

    It's good enough for Jazz... oh wait a moment!! I remember fixing a dead distortion channel on one of those amps. When I returned it to the shop owner I warned him to inform the customer how bad the...
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    Yeah I ordered some of those 1 watt resistors...

    Yeah I ordered some of those 1 watt resistors too. I thought they accidentally put 1/4 watt in my order or something. Kinda makes you a bit nervous using them.
  20. Hence the term voltage sag when you're really...

    Hence the term voltage sag when you're really jamming hard on an amp. The current is flowing and thus the B+ sags. Ebb and flow. Of course just setting bias shows the idle condition of this...
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    I guess I was thinking there would be a small...

    I guess I was thinking there would be a small millivolt reading across those resistors to indicate that there was a nice dribble of idle current.
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    I would scope it with a load attached and then...

    I would scope it with a load attached and then perhaps you'll see the notch. Also measure those ballast resistors again with the load attached.
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    Are you adjusting the bias with or without a load?

    Are you adjusting the bias with or without a load?
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    It has FX Send and FX return on the schematics,...

    It has FX Send and FX return on the schematics, after all if you have one your gonna have the other. Take another look at second document, page 2, quadrant H5. Is it labelled differently on the amp...
  25. Here is the one that G1 found a while back and...

    Here is the one that G1 found a while back and posted to the site. Thanks G1!

    http://music-electronics-forum.com/attachments/26441d1385214383-hartke_3500_mosfet.pdf
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    Yup the joys of amp repair when somebody else...

    Yup the joys of amp repair when somebody else took a stab at it already. Sounds like your making good progress on it though.
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    R61 & R62 will get very hot since they are...

    R61 & R62 will get very hot since they are dropping resistors. Next time you turn on the amp measure the voltage drop across those two resistors. Use ohms law to calculate total wattage dissipation...
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    Yes do check for dc voltage on the output and...

    Yes do check for dc voltage on the output and personally if there is dc on it then I would not connect a speaker load yet.

    C2 looks to be in that picture you took 10uf 35v but on your amp it is...
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