开云体育

Using the resistor color code, brown-white would translate to 19. The brown-red combination on a white background indicates 12 - or 21. The CRT socket however only has 14 pins. The background color is

Thank you for confirming this, Albert. My previous message got somewhat mangled in transit so I'll try to post the text again here: Further to this discussion on the 0.25R anti-ground-loop resistor on

Because, using the resistor color code, brown-white translates to 12, the CRT pin number it goes to. And for pins 1-9, I'll bet there will be only one stripe. Nice catch, I wouldn't have gotten it

561B (mentioned by keantoken) manual page 3-5 bottom left: "R183, which is about ten times the resistance of the braid of a 42-inch coax cable, cancels any ground loop current that may exist between

Received the 7603 trigger select board and swapped the suspect IC, U2404. My 7704A is now fully functional for trigger. R2409 measures 910 ohms as it should. The voltage on pin 11, the common

These Siemens motors can be found NIB occasionally. Here’s one: https://www.ebay.ca/itm/324450386031.

Further to this discussion on the 0.25R anti-ground-loop resistor on tube-era calibrator outputs, I looked further in to why my 127's calibrator output ground seemed to be open-circuit. It turned out

Dave, Happy to be of service. -- Jeff Dutky

Well, I finally got me some 2N3442s from mouser. Good news: the HV sparking problem was definitely cause by the 75V regulator going short. Bad news: there appears to be no vertical deflection. But,

Going to get this on the bench again this weekend and tinker with it. I couldn't get the shaft to come free; was afraid of breaking something. Will need to examine again. Sean

That dang Jeff Dutky keeps making me spend money on test equipment! LOL. Last I'd checked there wasn't any availability. R&L has them now! Get 'em while their hot! Dave

Jonathan Pyle wrote: Good News! You can remedy both deficits by the acquisition of a TinaSA: https://www.TinySA.org The TinySA is a spectrum analyzer that can operate on signals between 100 KHz and

Charles -- I tested the RF probe from Ukraine that I got on eBay (https://www.ebay.com/itm/RF-Active-Probe-0-1-1500-MHz-1-5-GHz-analyzer-oscilloscope-RF-cable-included/332393676082). I tested it with

Also consider that some of us are pretty good at 3D printing blowers that will fit onto a case fan hub ;-) Monty (the other one) <cheater00social@...> wrote:

Don't forget that PC fans are good and bad. If you want something good buy Noctua, or, in a pinch, BeQuiet. <durechenew@...> wrote:

Please forget my above remark. It's wrong. Raymond

That's done to improve focus tracking (making focus less dependent on beam current i.e. screen brightness). Raymond

The links are fine. I just wouldn't add the quotes because they are of no help, at least not to me, neither in Firefox nor in Chrome. Either highlight the whole url, including the trailing digits, and

Hi Dave, Spoiler alert! Don't look any further if you want to think about it a bit more, but here's the giveaway: Brown and red stripes for the wire connected to pin 12 of the CRT, etc. Strictly

Uploaded a couple of new pictures, though I see that the one Raymond uploaded does also show VR1434/C1434. Just didn't realize yesterday those were the pin 12 drivers. This one shows the same diagram