Over the years I have collected a number of working Signal Generators some of which are displayed on my test equipment pages. During December 2011 I was fortunate to be given some more modern and not so modern additions to my test equipment.
The Philips GM2883 has an excellent attenuator and covers from 100KHz to 30MHz, ideal for AM radio equipment. The Marconi TF2011 is intended for 2 Metre radio servicing covering from 130 to 180MHz and it also has an excellent attenuator. I have been experimenting with antenna, plotting the sensitivity patterns unsing this generator as the transmitter with a simple vertical quarter wave antenna attached. The next photos shows the TF2011 teamed with a Marconi TF2300A AM/FM Modulation Monitor. The last photo shows two valve era RF volt meters I have, both in very good condition.
Recent additions include an Atten ADS 1102 CAL 100 MHz digital oscilliscope and a vintage Marconi TF2370 110MHz spectrum analyser with tracking generator. I have also found time to repair some BoatAnchor signal generators that have been stored away for some years. RF Sig Gens include a Marconi TF995B, an R. A. Ratcliffe model 205 and an AVO portable Sig Gen No 2. The AF generator is a Levell TG200DMM a very nice battery powered instument that I have fitted AA cel battery holders to and it now uses twenty four AA cels in place of the original two 18 Volt batteries.
I have a number of old SWR and power meters but most were built from kits or have been repaired when someone put too much power into them in the past. AS a result, I do not believe what they are telling me. I have two vintage Philips vintage RF voltmeters (GM6058 and GM7635) both using an EA50 diode in an RF probe and two HP 411A RF voltmeters with some external. Three of these meters do not read RF voltages above 30 Volt RMS, only the Philips GMGM6058 reads to 300 Volt RF and is quite accurate. I have used this to confirm my working rigs are performing as intended but I still thought it would be nice to have a modern meter to keep an eye on the RF oiutput of the transmitters.
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Written by and Copyright, Phil. Storr © Last updated 16th Spetember 2013