Wednesday, December 18, 2019

Sommerkamp TS-680EDX


Got a very nice TS-680EDX for free, the first so called Sommerkamp Coffee Warmer from the late seventies. Original boxed so a very nice addition to my collection.

Saturday, September 28, 2019

Sommerkamp TS-788 DX Coffee warmer.

Back to the late seventies and early eighties this Sommerkamp was a dream for many cb operators.
Frequency readout, 100 watts of output all together in a small enclosure.
For most of the operators this transceiver was way too expensive.
Beside the high price it also had some flaws; FM was too narrow and the pll was not stable enough.



Now many years later a 788 has arrived in my shack. It looks allmost as new and it has the complete Maurer modification. Very good FM modulation, stable as a rock due to a complete new designed oscillator with SIxxx, tcxo, menu to adjust some settings, channel or frequency readout and much more.

Hans PA3HGT made a picture of his Maurer 788, note the new added pcb by Ir. Maurer.




Wednesday, June 12, 2019

President Adams CB radio

One of the best cb radio’s; the President Adams.
For a cb mobile radio it is really big!  Original am/ssb with 40 channels it was and still is state of the art despite it’s age (end seventies till mid eighties)

Mine is allmost as brand new and is modified by Maurer in Austria.
FM was added and a vfo as well. Even the face plate where the push knobs and frequency readout is placed, has been modified.

A real collectors item.


Sunday, December 16, 2018

Wednesday, May 16, 2018

SWR Bridge

For performing measurements on antennas with a spectrum analyzer an swr bridge is a very nice instrument to calculate the SWR of antenna systems.


CNC craftmenship by Theo PA0KN who made a perfect fit enclosure. Decal is laser engraved.



SWR bridge was bought on ebay and fits very good in the enclosure designed and made by PA0KN

Friday, February 23, 2018

10 meter (CB) transceiver.

Many CB transceivers are sold on the market as a 10 meter ham transceiver.
Of course this is done to “fool” the law and give CB operators the chance to buy an all mode transceiver with a large frequency span and more power than legal equipment.
These transceivers are very easy to modify to cover 11 and 10 meter as well.
For amateur use the models without fixed channels are quit usefull, although the lowest tuning frequency is limited to 100 hz.
I was able to buy a very nice Alan 9001 for 50 euro. You can also consider a Uniden / President Lincoln or Anytone models.
Qrv for a budget? Get a used CB radio!
Alan 9001 10-11 meter transceiver 26500 - 30 mhz allmode 25 watts.