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No sign of over heating. The (R21) wire wound 25 ohm 5 watt resistor or choke resistor gets hot.

Thank you Greg.

Hi. I am very old school and do not have a smart phone to send pictures. Sorry. I can tell you that on cb tricks in Texas star 500 DX listed in parts you will see in transistors (R21 and R28) are listed as 25 ohm 5 watt wire wound resistors. R 21 is the one that got hot and started smoking...

Hi Ranch 55 It is an older TS 500 dx. Not a variable power model. Toshiba 2879 transistors. It just quit working. I tried to repair, but no luck. When you turn it on one of the wire wound resistors will start to smoke.

Hi. I am hoping someone out here repairs texas star amps. I have a TS 500 dx in need of repair and am unable to do it myself. Thank you Chuck Saylor

Does anyone here know of good replacement mosfet power transistors for RM3 and ERF9530s. Just hoping someone has a lead on some replacements that can be bought in matched sets. Thanks to all Chuck Saylor

Seams like they are always sol out!

No need to apologize sir. You are not in the least bit rough either.Thanks

Hi Handy Andy. Please read my new post to see my level of experience and background with radio equipment. I am pretty new, but trying ti understand and learn from you and others who have far more experience than myself. Any explaination is helpful and simple instructions are too. If I don't...

Hi Shockwave and the others here. You are all far more knowledgible than myself on this subject. A little background on me. I enjoy radio and have had a stroke so I am limitrd as to what I can physically do.

Hi Captain K. What issues or damage to the amplifier do you see with the overshoot?

Thank you so much for this information sir!

Thank you Jeff for the information.

Can anyone answer my question on what damage can occur to an Italy 703 amp with overshoot causing damage. What is the most likely source of the damage? The RM3 transistors?

Hi to all. I have a amplifier that uses mosfet transistors. Two are bad. Do you need to purchase a complete matched set of mosfets for replacement like you you would with regular pill amp? Thanks in advance for the information. Chuck Saylor

Thank you Sir!

Hi to all. I have amplifier that uses 8 ERF9530 transistors. Some of these were bad or blown when I bought the amplifier. I can not find the ERF9530 transistors for replacement. I am in need o a good replacement transistor and your advice on which to use for replacement.Is the IRFP250 or the...

Dummy load and radio meter only. Thanks