Thanks for your help, folks - they do indeed seem to be identical. I had the opportunity to purchase a module out of a Corsair, and wanted to be sure it would make a spare for my CorsairII(s). Thanks
You might try experimenting with the value of R46 - it determines how fast the agc will track a varying signal. If it's a very high value, or is removed entirely, the agc couldn't track a varying sig
Scott, Can you describe in more detail the "popping" you are hearing? At what part of the keying cycle do you hear it? I have a couple of CorsairIIs and I can't say I've noticed that problem on eithe
Neat! When I see that, and note that the second PIC on my replacement logic board has 8 unused I/O lines, and note that PIC already generates the keying signal, I'm tempted to dive into the code agai
Jerry, You would certainly get two of those boards within ExpressPCB's MiniBoardPro outline - maybe more. That option gives you 3 boards - and therefore at least 6 sidetone boards - for $75 plus deli
If I were to implement Joe's sidetone mod I would build it on a small board, then mount that board on a couple of short stand-offs bolted to my replacement logic board: * It looks like there's plenty
I decided it would be nice not to have to modify the CorsairII knob when replacing the PTO with my DDS unit, so I made up a shaft adaptor; it slips over the encoder shaft, and has stepped diameters t
I used to have a small box full of Allen wrenches with sizes from 1.2mm to 1.7mm in 0.1mm steps !!!! No longer - the one which fits the Corsair tuning knob is now in its own box with a big label atta
Jerry, "Am I now in the exclusive club? ;-) " Not until you've drilled out the set-screw hole and re-tapped it for something bigger. And not until you can replace the dial skirt without using bad wor
Jerry, I find the safest way is to slip some thin insulated wire behind the skirt, slide it down to the shaft and pull. I've used two ways to put it back: 1) Tie some very thin cord around the straig
Here's a photo of a plastic tie-wrap doing the job. Being plastic it wont mark the skirt or the front panel when you pull it out, and it's flexible enough that it wont foul the front panel lips: http
That sounds much more like a mechanical issue. I had something very similar and decided it was time for a PTO re-build; that cured it! 73, Steve G3TXQ On 04/09/2011 14:40, Andrew Moore wrote: Thanks
Steve, I think I've done 4 re-builds now. On each one I've needed to carefully select the number of washers which space off the plastic spring housing at the back of the PTO; they determine how much
I designed my board and firmware to be a simple "drop in" replacement for the Corsair II mpu board. It interfaces to a display driver board which is unique to the Corsair II. So no - it can't be used
Folks, The keyer speed on my replacement Corsair mpu board is directly related to the frequency of the keyer clock oscillator on the audio processor board, which in turn is set by the front panel Spe
Having learned a little about PICs and what they can do, and inspired by N4YG's DDS system, I though I'd also learn a little about DDS technology. So I set about trying to build a "drop-in" DDS repla
I'm pretty happy with the DDS performance now, so if anyone is interested here is the final schematic of the PIC controller board: http://www.karinya.net/g3txq/corsair_pto/schematic.pdf And this is t
I see no warnings when I view my site in Firefox or IE7 + Norton. However I have received eMails from Google saying they have tagged the site as containing malware, so that shows up on a Google searc
It seems that most virus checkers find nothing wrong with my site; however, for some reason Google has flagged it as suspicious. Some browsers rely on Google to identify "dodgy" sites - those browser