livewire

That looks to be the radioactive model. Them tritium tubes cost more. Just sayin...

I see it now. I should a payed more attention to your overlay jpeg.

The Q14 - Q23 thing has me confused Looking at the pic of the board, dont see Q23. Also what is the function of the relays and other components in the middle of the board, between the two channels? Startup delay?

Joe Douche prickley thingys?

Happy Birthday Monkey!

Happy Birthday!

Update - This project is on hold until I have the mula to buy more sand. I hate when stuff is lost. I was going to take some in-progress pics after I found my "lost" camera. Turns out my daughter borrowed the cam and lost the USB adapter cable. Got the camera back but haven't been able to upload nuttin. Recently I lost a bag of pricey $$$ sand I had bought from BDent for the KGBH. No money in the budget to replace it at this time. Prolly wont be until the end of Feb until I can scrape the funds together to replenish. Hoping that I will be able to find the lost parts in the meantime. Meanwhile, there's a few other DIY projects that i'm pursuing. Currently building a 1974 vintage Mark-8 "minicompter". There's also a 1971 Kenbak-1 in the works too. This design pre-dated microprocessor chips. Still need to find a pcb or some gerbers for the Kenbak. Failing that, perfboard with wirewrap is an option.

At that price it would be nice if they threw in a few rings to sweeten the pot. Wonder how much gold is in them coins.

And a few eggs thrown in for good measure!

Ebay? Sands not that rare, a bunch for sale over there. Could be fakes, though at these low prices I doubt it. Bdent is one of the most reliable sellers but can be rather pricey. As for the bridge, most anything will work if it has the correct voltage and current specs. (or a bit higher) Pay attention to lead spacing as well. Works for me!

Happy Birthday Sir!

^^^THIS

I work in a 45 y/o hospital. Today, my focus was to repair a thirty year old patient / nurse call intercom system. Had to reprogram corrupted code as well as replace a ton of hardware. Think - IBM PC circa 1982 times 40. At least it's not crashing anymore. <<fingers crossed>>

Happy Birthday y'all !

Happy Birthday!

Golly!!! Yeah, I'd pay $12K for that. Pfft!

Yup, price for one. Fuzzy pic - looks like it could be the real deal.

@SP - Happy to hear she's not hurt. I can relate. Last year, my wife's car was rear-ended at high speed. She was fine, the car was totalled.

232+27=259 She's the great mom that I figured she would be. No regrets.

American.

Yup. That's what the article said. Steve Irwin would have felt right at home.

Wow! I'll say. Not bad after pushing up daisies for 15 years.

Kim Kartrashian at Comicon?

Since the newer CCS circuit layout has not been published by the designers, I wont divulge the schematic without their consent. Nattonrice did post some pictures of his KGBH build in the HC DIY forum. One can see which parts have been omitted on the amp boards. Gone are the 1968s, the 500 ohm pull up resistors, the two series LEDs and the 400K resistor that connected to the bases of the 1968s. I can be stupid when it comes to linking threads. To see his pics, look in the 'DIY amp and such build gallery' thread, page 212 - post #4239

#1) Lower cost. The 1968s are becoming rare and their price reflects that. #2) Availability. If my CCS burns up in the future, hopefully the 10m90s wil be in abundant supply. The 1968s wont be. #3) Reliability. I've heard of strings of 1968 transistors burning out. Not one, but a bunch of them. #4) Ease of construction. Drilling, tapping and aligning (6) 4-40 holes into the heatsinks is much less work than the 30 required for the A1968s. #5) HeadAmp uses them. The current version of the BHSE uses a similar CCS. Seems to me to be a natural evolution in circuit design. And a good one at that.