Search results

Good job.....

It can and does happen..... When installing new power transistors, it is recommended to also install new bias resistors......

Yeah, I have got to the point where any time I do work on any Texas Star amplifier, I always pull the board/boards out for inspection underneath. And when I reinstall the boards, I put a thin layer of Teflon sheet under the board just to prevent that very issue...... Good call.....

All you need is a VOM and lift one end of the component you are checking off the board......

Well, if the amplifier is popping fuses as soon as you connect it to voltage power after replacing the fuse, then it is just a simple matter of determining which component or components is shorted directly from the voltage supply directly to ground..... Several components are connected directly...

C18, C19 is the electrolytic cap, and D4

Sounds like the electrolytic filter capacitor on the input hot side..... OR the big diode on the hot wire.......

You can add some attenuation on the input signal....... That is what the variable is on a Texas Star HD350V and a Texas Star HD500V amplifiers. I have removed the variable a few times and added in it's place a fixed resistance to attenuate the input signal.......

That sure does appear to be a dead short solder blob across the collector to ground/emitter......

Wire rope guy wires work just fine..... I suggest using insulators to isolate the wire rope from the antenna system.....

I don't believe anyone has been talking "legal-ese" per se...... Someone asked to "see it" in writing and we have obliged a couple of times...... Again, "keep your panties on"......

It's a mobile amplifier...... I suggest 14.0 to 14.2 volts supply voltage......

I would say you are okay with those measurements....... I have seen the same variations using Toshiba's and you will see variations using the HG's....... Key the amplifier up with a 2 watt am drive input .......

Only 1 pair of transistors in this amplifier.....

"Kinda hypocritical to post FCC regulations when you don't seem to have a problem with other illegal mods like channel expansions, ham gear on 11m, or running big amplifiers. A clipped limiter is more annoying than a brief sound clip once in a while. Not everyone that uses these noise toys sit...

Those two capacitors help to filter and stop oscillations. They are dc current and voltage blockers... They are not there any longer strictly for time and some money savings....

Pretty clear........ Argue with it if you like, but there it is in plain English...... § 97.113 Prohibited transmissions. (a) No amateur station shall transmit: (4) Music using a phone emission except as specifically provided elsewhere in this section; communications intended to facilitate a...

You must have filled out the Form ID-I0-T .......

Okay, there ya go..... Read 'em and weep..... FCC Regulations Citation47 CFR 97.113 § 97.113 Prohibited transmissions. (a) No amateur station shall transmit: (1) Communications specifically prohibited elsewhere in this part; (2) Communications for hire or for material compensation, direct or...

Of course I'm sure you know that is illegal on all HF bands, even cb....