Royce 1-642 AF Amps Voltage question

[3pinplug]

Hi all

Transistors Q6 & Q7 (AF Amps - both 2SC945) -when i measure the voltages on the transistiors I get the following:-

Q6

E = 0.76v sams shows 0.81V

C = 4.66v Sams shows 4.14v

B = 1.41v sams shows 1.42v

Q7

E = 3.86v sams shows 12.33v??

C = 12.21v sams shows 12.33v

B = 4.57 Sams shows 4.09v

According to the Sams I should have 12.33v on the Emitter of Q7 but i only have 3.86V, all above measured on RX as it doesn't say to measure on XMT on the diagram.

Should there be 12.33v on the emitter, I have changed Q7 and it makes no difference to the voltages measured?

If i try to upload a small photo it says that the forum has exceeded its allowable size?

[2600]

Sounds like you need to install a photo 'resizer' program, or an image editor that has this feature. Irfanview is what I use. A size of 800 by 600 should not make the forum software whine about the size.

Went to look for a schematic for that radio, didn't find it online.

Oops. Is there a resistor between the emitter of Q7 and ground? If it looks burned, this could raise the voltage at this spot. But if that resistor looks damaged, it's time to test Q7.

73

[3pinplug]

Ok will check the resistor and let you know what i find.👍