Bright light, NO idea :-)

[jdg123]

Excellent and rare data, thank you! I hope this thread is tapped in the future for the benefit of other new guys to this petty darn satisfying pursuit.

 

[jdg123]

Progress report: ordered bulbs from dwojo69@msn.com, nice guy. Recap power board and cleaned the relay switch. Recap tone board and Phono board.

I have some notes to anyone new.

The soldering on these boards is different: the leads are bent over and soldered down to the odd shaped pads. This means after solder sucking and wicking you must still pry up the leads with a tool while they are still hot. Second, the phono board has two orange caps on the outboard edge (47uF/16V), these are very nice, low ESR caps. I did my best to imitate their values but I should have left them alone. I recommend test and refit for the next guy.

Finally a strange thing I saw only after I photographed it: there is a part that is worn through! It is a 330 Ohm 2W resistor next to the power button. I really don't know how That happened :-(

 

[petehall347]

2SC496, Use BD136 Be very careful to have these installed right side up. Check before installing.
2sB537, Use MJE15031
2sD382, Use MJE15030
H710.... Do not mess with it.
H711, 2SA794, use ksa1220a
H712, 2sc1567 usa ksc2690a

bd136 is a PNP .. better use a BD135 NPN

 

[KutzlerTrans]

You are Correct Mr Pete!, Good catch. I have one in my hand. BD135-16

I will correct that post right now. I have it written correctly on my list, its a typing mistake.
'Check before installing" Is that extra safety net.