An externally hosted image should be here but it was not working when we last tested it.
Hi all members .I'm in Vietnam . I'm sorry . My english is very bad 🙂 .
I had a receiver Kenwood KR 5150 . Run 4 transistor Red Toshiba .
Anyone knows this receiver use Red- Toshiba or Sanken 2111 .
Please help me .
Thanks All.
Last edited:
Hi all members .
I'm in Vietnam . I'm sorry . My English is very bad .
I had a receiver Kenwood KR 5150 run 4 transisitors Red- Toshiba .( I don't know is true ).
Anyone knows this receiver use Red- Toshiba or Sanken 2111 . Please help me .
Thanks All .
I'm in Vietnam . I'm sorry . My English is very bad .
I had a receiver Kenwood KR 5150 run 4 transisitors Red- Toshiba .( I don't know is true ).
Anyone knows this receiver use Red- Toshiba or Sanken 2111 . Please help me .
Thanks All .
I'm sorry my new thread is fault .
Hi all members .
I'm in Vietnam . I'm sorry . My english is very bad .
I had a receiver Kenwood KR 5150 run 4 transistors Re- Toshiba ( I don't kown , this is right ) .Anyone knows this receiver use Red- Toshiba or Sanken 2111 .
Please help me .
Thanks All .
Hi all members .
I'm in Vietnam . I'm sorry . My english is very bad .
I had a receiver Kenwood KR 5150 run 4 transistors Re- Toshiba ( I don't kown , this is right ) .Anyone knows this receiver use Red- Toshiba or Sanken 2111 .
Please help me .
Thanks All .
This receiver is more than 40 years old. Many parts will not be replaceable but 2SC1111 TO3 output transistors are apparently still made by Inchange (ISC) in China. They seem to be good quality parts but I think even genuine 2N3055, selected for medium or better Hfe, could also work in this design. Alternatives shown on the schematic are 2SC793 & 2SC1030.
Note that if the output transistors are shorted, the drivers Qe114 - 117 will most likely also be blown, if not more transistors will also be damaged, back as far even as the input. Check them all before applying power and use a Variac, light bulb limiter or dropping resistors in the mains supply to prevent a repeat destruction of the new parts.
I guess you are aware that electrolytic capacitors will be useless after so many years, even in cool climates. Make sure you replace them if not already done - before hitting the power button.
This site requires registration but there are no gotchas with nasty security detail requirements.
Kenwood KR-5150 Manual - Solid State AM/FM Stereo Receiver - HiFi Engine
Note that if the output transistors are shorted, the drivers Qe114 - 117 will most likely also be blown, if not more transistors will also be damaged, back as far even as the input. Check them all before applying power and use a Variac, light bulb limiter or dropping resistors in the mains supply to prevent a repeat destruction of the new parts.
I guess you are aware that electrolytic capacitors will be useless after so many years, even in cool climates. Make sure you replace them if not already done - before hitting the power button.
This site requires registration but there are no gotchas with nasty security detail requirements.
Kenwood KR-5150 Manual - Solid State AM/FM Stereo Receiver - HiFi Engine
- Status
- Not open for further replies.