Hello everyone,
I am new here; I've been looking for a forum for awhile now that can give me some help on various component questions as building circuits is a new hobby for me.
My main area of interest is applications that involve audio and hi-fi systems especially analog/vintage equipment.
I got quickly knee deep in the murky quicksand that is breaking things apart and making things when i got hold of an old tired Goodmans module 80 that had a lenco turntable in it which i was mainly interested in at the time it was worth quite a bit on ebay .
I ended up stripping the whole thing down to the left and right amp channels + power supply throwing them into a box (looks more pretty than it sounds) wired up to a alps 50k pot and passive pre switching which gave me the best sounding amp i have ever owned and it cost me next to £30.
The experience has given me the idea to prototype a amplifier based on the circuit design of the goodmans.
Its going to be difficult because most of the components used are no longer in production or the values are very hard to find. However I have managed to find their equivalents to the nearest values.
Namely the transistors were a pain to find. I used http://alltransistors.com to find the equivalents.
Anyway (I tend to waffle on abit) i have bought most of the components i need there is just one which is puzzling me on both left and right modules theres a clear diode with three bands on it (white, purple, black) and for the life of me i cant find it anywhere for purchase or find its values for equivalents .
Can anyone help here? Thank you!
I am new here; I've been looking for a forum for awhile now that can give me some help on various component questions as building circuits is a new hobby for me.
My main area of interest is applications that involve audio and hi-fi systems especially analog/vintage equipment.
I got quickly knee deep in the murky quicksand that is breaking things apart and making things when i got hold of an old tired Goodmans module 80 that had a lenco turntable in it which i was mainly interested in at the time it was worth quite a bit on ebay .
I ended up stripping the whole thing down to the left and right amp channels + power supply throwing them into a box (looks more pretty than it sounds) wired up to a alps 50k pot and passive pre switching which gave me the best sounding amp i have ever owned and it cost me next to £30.
The experience has given me the idea to prototype a amplifier based on the circuit design of the goodmans.
Its going to be difficult because most of the components used are no longer in production or the values are very hard to find. However I have managed to find their equivalents to the nearest values.
Namely the transistors were a pain to find. I used http://alltransistors.com to find the equivalents.
Anyway (I tend to waffle on abit) i have bought most of the components i need there is just one which is puzzling me on both left and right modules theres a clear diode with three bands on it (white, purple, black) and for the life of me i cant find it anywhere for purchase or find its values for equivalents .
Can anyone help here? Thank you!