Ticking noise ? Pics

[Jerry2013]

I just fired up my amp I did the recap on. Trial by fore- stupid I know, but just going up that blind faith hill, so to speak. I managed to put in a replacement pin into the messed up tube socket , and I think i did it right( thaNKS!)

All tubes light up, but its making the same rapid ticking noise as before the recap. I guess it plays, but I didn't leave it on long enuf' to find out.
What is that ticking noise?

Also, an amp like this, with no available schematic that I know of, and I've searched long and hard and thats been worked over ( mauled) by an amateur, how feasible is this thing to get repaired by a tech?

Its a l nice looking amp, and probably sounds decent when working properly.

[IMG768]http://i1343.photobucket.com/albums/o78 ... a11d65.jpg[/img]


[IMG768]http://i1343.photobucket.com/albums/o78 ... 2d82a1.jpg[/img]

[IMG768]http://i1343.photobucket.com/albums/o78 ... 9d13ab.jpg[/img]

[IMG768]http://i1343.photobucket.com/albums/o78 ... 8c584e.jpg[/img]

[IMG:768:1024]http://i1343.photobucket.com/albums/o78 ... b56439.jpg[/img]

[IMG768]http://i1343.photobucket.com/albums/o78 ... f55b3d.jpg[/img]

[IMG768]http://i1343.photobucket.com/albums/o78 ... 7f8c9a.jpg[/img]

[IMG768]http://i1343.photobucket.com/albums/o78 ... 0c34f4.jpg[/img]

[Smokebreak]

Of course it can work. Don't give up on it. Sometimes strange sounds are caused by surrounding appliances or cell phones...or bad tubes

[Jerry2013]

Of course it can work. Don't give up on it. Sometimes strange sounds are caused by surrounding appliances or cell phones...or bad tubes

This one is worse- aprroaches a steady motorboat tick, and loud enuf to cause concern. I guess Id like to know how difficult is it to trace the problem when there is no schematic, someone has messed around ( an idiot) with the values of the caps?

[Smokebreak]

Well I imagine you're gonna have to draw it out to figure what's wrong. I'm an amateur myself but it looks like there is tube chart in one of your pics and it goes transistor>phase inverter(12ax7??)>7868s>rectifier?

[hitchcaster]

yeah, cellphone or appliance in the line....... move the amp to different location. have you checked it with supro schematics? good luck!

[mark enger]

the pre-amp is soild state, and its moterboating? you could build a simple 12ax7 pre-amp and send it through the PI maybe a simple champ with treble and bass, you could do it with out drilling holes till you decide if you lik it

[Structo]

What frequency is this ticking?

Is it a low motor boat type putt, putt, putt or a higher tick, tick tick at regular intervals?

[labb]

https://www.google.com/search?q=alamo+f ... tic&client

[Jerry2013]

What frequency is this ticking?

Is it a low motor boat type putt, putt, putt or a higher tick, tick tick at regular intervals?

Its a higher rapid steady tick tick tick, but if you let it go it starts motorboating then takes a low frequency dump, like pulling the power cord on a organ sort of.

Im wondering if either I got one of the leads reversed on the multi section can cap replacement caps, or whether the pin i replaced in the tube socket isnt making good contact with the tube pin ( #6)

[Structo]

I don't think it would be the socket pin because it was doing this before you broke the pin, right?

Yes, triple check any work you did on the amp.

Polarities, solder joints, lead dress.

I normally don't like to see bare leads of any length on a point to point amp.


You should cover the leads with insulation stripped from a proper gauge wire.

Here are some areas that I would check if I were you.

Check for bare leads touching other things, cold solder joints and
polarities.