Uniden's upD858 chassis final transistor 43 (2SC1945) replaced with 2SC1307 or 2SC1969

[@SWIZZRADIOS]

Hello dr OM, thank you for the flowers... Happy airwaves to you.... Best 73's...

[@disciple177]

never realized how fast you have to use the solder sucker!! LOL i bought one about 6 yrs ago from a top brand and is real top quality in it's metal case and plastic suction area

[@SWIZZRADIOS]

disciple177 CB Radio friend hello, thank you for your comment. Yes this is only the Video. The Trans. was already de-soldered before the record was made. LoL Best 73s to you..

[@claudio8695]

Hi! The Royce 1-632 CB rádio , use this 2SC1945...is possible the replacement with some of this similars???? Best regards from Brasil!!

[@SWIZZRADIOS]

Mister Claudio hello, thank you for your interest. Yes these 2SC1969 or 2312 are similar in his specifications. But the 2SC1945 has a different pinning. The MRF477 uses the similar pinning like the 2SC1945. But it's very expensive. Best 73 to you

[@claudio8695]

@@SWIZZRADIOS yes understood!!. Thanks so much! Best 73!!

[@FernandoGiannetti-bv8of]

Que radio es? Yo tenho un cobra 139xlr con que se puede reeplazar el transitor de salida??

[@SWIZZRADIOS]

Mr Fernando hello, thank you for your visit on my channel. If you have a 2SC1945 in the final, you can replace this with a 1969 or 2312. But I think, the COBRA has allready a 2SC1307 in the final. Best 73 to you and yours.

[@franciscollanos4031]

Hola, tengo un Cb Palomar SSB 600 ,realice el cambio del transistor c1945 por un 2sc1969 como se indica en su video , transmite pero distorcionado no sale clara la modulacion. Como lo puedo ajustar??? Gracias

[@SWIZZRADIOS]

Yes, on PALOMAR SSB500/600 is to adjust the ALC trimmer TC7 for a good audio on SSB. That's my input. Best 73s to you.

[@1112223333111]

Hello again! I have replaced my 1307 with a 2312 in my TRC449 Is there anything else for me to do? Do I have to replace any resistors or diodes? Mine has the 47ohm resistor but also has 2 diodes (1S2473's) And the bias? Thanks, 73's

[@SWIZZRADIOS]

+ᗒ╬ᗕ1112223333111ᗒ╬ᗕ Hello also! The 2SC2312 is similar to 2SC1307. Bias is about 50mA Emitter to ground. But if you have 0.6-0.65 Volts on the base (TX without Modulation), bias is OK. Good luck.

[@stevesteve6506]

I need help, where do you put your multimeter leads to check for the finals bias voltage?

[@SWIZZRADIOS]

Hello dear CB radio fan, thank you for your interest. Is to measure the bias current between the open Emitter-leg and chassis-ground. Look into my video about CYBERNET Radios: kzbin.info/www/bejne/q3WniJuoa9OJnq8

[@TheFlyre]

2SC1969 hey is there 38 mhz??? transistor?

[@SWIZZRADIOS]

The 2SC1969 is designed for 27 MHz purposes.

[@TheFlyre]

im looking for 38 mhz??? what the best transistor for 38mhz?

[@orange70383]

That's a good solution.

[@SWIZZRADIOS]

Orange hello. Thank you for the commend. Best 73's...

[@goradios21154]

Awesome :)

[@SWIZZRADIOS]

wayne court Mr Wayne Court hello, thank you for the commend. Best 73's to you....