hacking old valve/tube radio into guitar amp,question's,

[GARAGE HERMIT]

look's good, might work as it is for a guitar amp, but dont take my word for it, i know very little about all this tube stuff, you could start your own thread about converting it, and get some good advice on what to do with it,

 

[GARAGE HERMIT]

made a bit more progress, just waiting for a few more resistor's i ordered to arrive, it's starting to get a bit cold now in the garage, 4 degree's last night, but i'm still enjoying it,

 

[Gnobuddy]

Garage Hermit, you've come a long way in a short time, and I'm quite impressed at your rate of progress. A tip of the hat to you, mate!

That said, beware of too-long wires. Two long wires run side by side act as a small value capacitor. Tubes (valves!) are willing to work happily at quite high frequencies, and at those high frequencies even that small amount of capacitance can be enough to send the signal to places where it shouldn't go. As a result, an otherwise sane and happy tube amp can go bonkers and oscillate, squeal, howl, pretend it's a radio transmitter, and so on.

One other thing, which is a matter of personal choice: I find I make fewer wiring mistakes if I use multiple colours of wire, and have some sort of mental scheme as to where I use them. For instance, black for ground, red for positive DC voltage, yellow for signals, or something like that.

-Gnobuddy

 

[GARAGE HERMIT]

thank's "gnobuddy" , yes the long wire's might cause problem's, but it's just a prototype, as long as it does'nt blow up and it amplifie's the guitar sound i'll be pleased, i think i'll mount all the component's to the valve holder's etc and do away with the tag board, a lot simpler, yes, i'll have to buy a few different coloured coil's of wire, as you mentioned, easier to keep track of what's going where,

 

[GARAGE HERMIT]

decided to mod it a bit, it looked like a rat's nest, so i un-soldered everything, re-positioned the tag board inside the chassis and re-positioned the valve's/tube's,