The Mod Box was a great idea during it's time. Only the IFR-1000 at the time had the provision to use a microphone with a pre-emhasis network. Most all the service monitors only allowed an internal tone or external audio gen. Some allowed the mix of both. The Mod box was sort of like a microphone and two source tone mixer.
The Power pad was neat b/c unlike an isotee or throughline power attenuator, you could combine both ends of a service monitor, especially one with duplex/offset generation to a device at the same time. Leave it attached permanantly and take into account the attenuation and never worry about accidently frying it. We bought a couple of the Com-Ser (Neo-Lampkin) units. Still have one. These were single port devices based on a thick film hybrid in a big heatsink. They made some neat add-on stuff too. They had a banded, two way amplifier/preselector that raised the flea power output of some of the earlier monitors to +dbm levels, preslected the input and output for clean output and microvolt sensitivity of the monitor for OTA monitoring. Moot point with later monitors of the 80's. --- In [email protected], Tony Faiola <fai...@...> wrote: > > > On Mar 24, 2010, at 11:06 PM, Gary Schafer wrote: > > > Yes he did build some for a few years. They were never a big seller > > as the > > price was pretty high. They did work pretty well. It did not have a > > digital > > display, only analog meters. There were lights that showed what > > range it was > > on. You could read AC on one meter and DC on the other. Handy for some > > things. > > > > I kind of remember him playing around with an attenuator pad to go > > ahead of > > a service monitor. I don't remember the wattmeter part though. > > > > There was a guy in California making a 40 db power pad to use ahead > > of a > > service monitor. It was made during the Singer monitor era to go in > > front of > > it. It had a port for the transceiver and one for the signal > > generator and > > another for the receive input on the monitor. It worked pretty > > well. There > > may be a few floating around yet. > > Gary: The guy that marketed that 40 db power pad was actually a rep, > a real character. I still have the data sheet and picture somewhere > here in my library. He used to tell me his real money came from > making and selling waders. > > BTW I do have the schematic and JPEG of the Cushman 40 db pad with > the fuse inside. Should I send it to someone? > > Ciao, Tony, K3WX > > > > 73 > > Gary K4FMX > > > >> > >> While we're at it, what ever happened to the watt meter that fed a > >> power > >> pad like a termaline with an attenuated output? Was that talk, or did > >> they ever do anything with that? > >> > >> > >>> > > >
