Ron: Even if the keyer is set up for positive voltage keying, the saturation voltage of the output transistor may be too high for reliable keying. For example, this is from the Century 22 manual: "Fo
Is anyone running the 715 with either a Paragon or a Corsair? 73, Bob WB2VUF I read the review of the Model 715 speech processor in QST magazine. I thought it was a good piece and sounded accurate an
That takes me back too my misspent youth. When I was in High School in the late 60's I listened to Jean Shepherd's (K2ORS, SK) radio show on WOR (NYC) every night. He occasionally told funny ham radi
John, it's probably easier to build an outboard receiving converter, than to modify an existing Scout module. I'd prefer to leave the module intact, unless I had a scrap one. Scout modules have becom
Ed: AADE (Almost All Digital Electronics) makes a display kit kit that will probably work. Oak Hill Research also makes one. 73, Bob WB2VUF Ed Purvis wrote: Thanks, I am kinda sure the an external fr
That is correct. The C22 PTO tunes 6 to 6.5 MHz, thus avoiding the second harmonic problem. 73, Bob WB2VUF The C-21 is nothing like the Corsair II. Ten-Tec calls the C-21 a "double direct conversion"
John: You can extract the sockets and squeeze them to make them tighter. A little Deoxit will help, too. Mouser Electronics has the pins, sockets and shells. 73, Bob WB2VUF John Hensley wrote: Good m
I would say that the core should not be greased. If assembled correctly, it should not rub on the inside of the coil form. 73, Bob WB2VUF Step says to grease the threads inside the pistol. Done. But
Mike, you have at least one of everything radio! The 315 does look like a nice receiver. 73, Bob WB2VUF Mike, WB8VGE HelloI was curious if there are many of the RX-315 receivers around? I have some o
I've had that on my Paragon, but only with the internal speaker. In my case, it was caused by a little resistance in the shield lead of the audio output. 73, Bob WB2VUF Dr. Gerald N. Johnson wrote: O
yes, Helena Rubenstein (the cosmetics company) even made R390's. She was advised to diversify into military electronics, so the company bid on a production run and won. Then they realized that they d
Yes, the diodes are used to program counter presets for the various bands. Also, I had a leaky bypass capacitor on the counter board that caused erroneous readings. 73, Bob WB2VUF Dr. Gerald N. Johns
Tom NØJMY wrote: Hello. New member here. I have some Century 21's here which seem to all exhibit dial backlash (maybe I should call it knob backlash) when turning the tuning knob counter-clockwise. T
Tom: I found that on my Corsair and Century 22, the felt washer is very important for preventing the dial from springing back, especially at the edge of the band where spring tension is at maximum. O
Yes, the magnetic field from the power supply will frequency modulate the PTO coil, making received and transmitted signals sound bad. This happened to me when I stacked the Corsair on top of the ext
Mike: First of all, How are you feeling? I hope that you are on the mend. As I recall from my reading, CAP radios must conform to the new NTIA 20 Hz frequency tolerance requirement. This makes most a
Jim: The best 'phones for cw are the old style magnetic types because they have a resonance around 800 Hz. I found new mil HS-19 headphones at Army Surplus Warehouse (http://armysurpluswarehouse.com)
I didn't know they were still available. I got some at a hamfest, new in MIL packaging. I use them with my TT Scout. They have really nice fidelity. I don't know how they can reduce external noise, u
Lee: The easiest way to fix thermal drift is to change the temperature compensating capacitor in the PTO. This is the cap that is shown as "value selected in production" on the PTO schematic. You wil
Hmmm... Would a DDS VFO work in the Scout? 73, Bob WB2VUF veast1 wrote: Lee, I am going down this same road with my back-pack rig. It's an MFJ 40 mtr. SSB rig. The VFO is highly unstable and i am goi