CyberMax transmitter from PCS
Another CyberMax FM broadcast transmitter came in recently, with a report of no output. After inspection of the PA stage, there was no output from the final stage BLF188xr LDMOS on the pallet ...
Radio Transmitters
Amplitec UG2 30/350 Linear VHF amplifier
Amplitec VHF Linear amplifier UG 2-30/350This is a well built nice linear amplifier. Basic design and enough space to be able to work on it internally.The original fault was very low output. With an ...
Kenwood TS-770 Transceiver
Kenwood TS-770 VHF-UHF transceiverA friend and radio ham brought this nice little transceiver into the play pen complaining of a faulty knob. The transceiver that is.Well made, dating back to the ...
Warner FMT5.0 broadcast transmitter
Warner FMT 5.0The 150 Watt transmitter came in today with a report that it was overheating after being on for a short while. Not familiar with this transmitter, so off with it’s lid to see what was ...
PCS CyberMax 600 transmitter repair
Another transmitter in for repair. A nice PCS CyberMax 600 with an upset final stage as a result of over enthusiastic operation. Coverage is not just about power.The final PA stage held out as long ...
Ameritron AL-811H linear amplifier
Ameritron AL-811H linear HF amplifierThis amplifier came into the shop for repair. Nicely made basic amplifier, but always worth knowing the history of previous faults and may be worth noting some of ...
Yeasu FT-736R
YEASU FT-736RLovely transceiver arrived today. An iconic set from the late ‘80s. The fault was, the main tuning control did not work correctly. This is quite a common issue with this set and many ...
Transmitter rebuilds, using PCS Electronics
There is quite a vibrant local FM radio scene here in Spain. If you pick a quite spot on the dial and don’t interfere with existing stations and keep under a few hundred Watts, the authorities turn a ...
RM KL503H linear amplifier
Another wonderful exciting day in the play-pen. Warm breeze drifting in, waves lapping at the office door step. Bit worrying as we are 40 Km from the coast. Anyway.Today’s project was a nice Italian ...
RM BLA350 Linear power amplifier
RM BLA350 Linear HF amplifierOh we know how to have fun in the play-pen. Seen a couple of these and they are nicely made, by our Italian friends, pieces of equipment. Components are good and the ...
Yeasu FT450D
This poor transceiver had been accidently left connected to the antenna array during a thunderstorm. Whilst not having had a direct hit, it would seem that a local striation must have hit the ...
Henry Radio 2006A repair
Henry Radio 2006AWhen someone says to me “I bet you like a challenge?” my answer nowadays is NO. I like a job that I can complete quickly, doesn’t make my head hurt and I can earn enough to feed ...