I redid Ty's "for dummies". Readings where they should be- rectifier tube/ss( not as) switch made no difference, same readings either way.
Put tubes back in, nothing. Power tubes glowed, rec and 12at7 didn't. I will let it rest and I will reseat 12at7, it is very tight-hard to get in.
I will take readings L1 to ground.
Is there another B+ point on pcb?
Put tubes back in, nothing. Power tubes glowed, rec and 12at7 didn't. I will let it rest and I will reseat 12at7, it is very tight-hard to get in.
I will take readings L1 to ground.
Is there another B+ point on pcb?
I don't know.
If your rectifier tube were bad, you should still have power from the hexfreds.
If it were me, I would remove the hexfreds at this stage if only to concentrate on one thing at a time. Mine were blown and they have caused trouble for other people. You could remove them and check them.
I don't know why your rectifier heaters are not heating up if you have 5v across them.
You could check the resistance of the heater filaments on the pins of the tube itself when you have it taken out.
Mine reads 1.2ohms between pins 2 and pin8.
If your rectifier tube were bad, you should still have power from the hexfreds.
If it were me, I would remove the hexfreds at this stage if only to concentrate on one thing at a time. Mine were blown and they have caused trouble for other people. You could remove them and check them.
I don't know why your rectifier heaters are not heating up if you have 5v across them.
You could check the resistance of the heater filaments on the pins of the tube itself when you have it taken out.
Mine reads 1.2ohms between pins 2 and pin8.
Installed wires in C1. Gave unit power. Still zero at L1 and R4.
Preamp ( nasty socket, tube sits 3/16 the up) and power tubes glow.
Rec tube didn't. Checked resistance across 2 and8. Zero, with two meters.
Hexfords are D1 and2, correct? You couldn' say something like R4 or R14, something easy to get to.
Preamp ( nasty socket, tube sits 3/16 the up) and power tubes glow.
Rec tube didn't. Checked resistance across 2 and8. Zero, with two meters.
Hexfords are D1 and2, correct? You couldn' say something like R4 or R14, something easy to get to.
I will check.
I believe my rectifier tube is cooked. Some silver material from the top is missing and there are droplets on the side of the tube. Plus, there is no resistance, two meters, or continuity also two meters.
I ordered a new one, JJ gz34. Two day delivery. Cheaper than going local.
Plus ordered some tubes for rolling when amp is sorted out. Kt77s. NOS.
Kidding. JJs.
I believe my rectifier tube is cooked. Some silver material from the top is missing and there are droplets on the side of the tube. Plus, there is no resistance, two meters, or continuity also two meters.
I ordered a new one, JJ gz34. Two day delivery. Cheaper than going local.
Plus ordered some tubes for rolling when amp is sorted out. Kt77s. NOS.
Kidding. JJs.
Finally
New tubes arrived. Warmed rectifier to house temp, plugged it in,I played I'm So Glad by Cream. And I am.
Only got to play the one song - my wife works from home and she was on a conference call.
Have some buzz.
Took readings for B+, at L1 it is 426. At B4 zip(?).
I will take readings at R17 and 27.
THANK YOU.
New tubes arrived. Warmed rectifier to house temp, plugged it in,I played I'm So Glad by Cream. And I am.
Only got to play the one song - my wife works from home and she was on a conference call.
Have some buzz.
Took readings for B+, at L1 it is 426. At B4 zip(?).
I will take readings at R17 and 27.
THANK YOU.