开云体育

Everything depends on the +50 supply. Even the regulator op amps get their supply from the +50. So yes, you need to get the 50 volts working first. I would find a radial lead cap (wire leads) that is

Sorry, you are right, Stan's book says 670 is with parts indeed. Albert

I did some more reading, and then more testing, over the past week. I also purchased an ESR meter to aid my testing. What I found was that two of the main caps are definitely bad (one had too high of

You may want to recheck all of the controls - especially buttons - to make sure you didn't inadvertantly change any while pushing the plug-in into the compartment. There's not much free space on the

A truly bare board is a 388-xxxx-yy. ISTR a 670 is a populated board, and a 672 is a populated board with any necessary hand adds. If not that, it's something close. -ls- Artekmedia

what's up mark? I have an sc504 that i had problem with. mine turned out to be the hv multiplier. jim

OK that some sense , although I doubt it is a "bare" board, I suspect the parts in the kit are external to the board, and that the board is otherwise fully assembled Dave

And? Didn't think so, since it's being sold by Tektronix surplus!

Hi Jerry, I've send the $12 to your paypal account. Many thanks Gerhard

Hi Gerhard, Shipping for 6 ounces is 6.90usd. Send 12usd to j_massengale@... via paypal and it will be on it's way. Jerry Massengale

Hi Dave, It seems that 672-0538-00 is a set containing not only the circuit board but also several other components: http://www.ctg123.com/rapid-quote-system/request/?p=672-0538-00 In other words,

Albert There were apparently two different versions of the board 670-4177-xx and 672-0538-xx ( look at the 1st page on your parts list in the manual) It is not clear to me looking at my copies of

Hi Dave, All my 7B80s have A1 board 670-4177-00. Actually, 670-417 is etched and the last 7 is in ink. Probably because the same board cold be prepared for use in a 7B80 (4177) or a 7B85 (4179 with a

Good Day, a Tek 2101 pulse generator is on sale on ePay, see item # 150856739339. I have no affiliation with the seller. Cheers, Magnus

Albert & John What is the part number of your respective boards Dave -- Dave& Lynn Henderson Manuals@... www.Artekmedia.com PO Box 175 Welch,MN 55089

Hi John, It's still confusing for me, is "the same results" what you found before? My board contains 3 ICs (Uxxx), not 2. I will send you pictures off-line. Albert

Hi Fabio, sorry to hear about that! Are you confident about this? No sign of life, if the trigger is set to AUTO & LINE, and inserted into a vertical compartment of your 7704A? If you need any

On 07/15/2012 12:57 PM, keithostertag wrote: > Good News! We now have a working CRT and R7903! > > The Short story: After replacing one resistor the screen came alive. After some adjustments there are

Ouch! I managed to kill my only one timebase. Probably inserting and extracting it with the mainframe powered, now the 7B92A doesnt trigger anymore, it triggered before :( Fabio. P.S. Yes I know, I

Hi Jerry, I need the Horiz Pot (MAG und POS) R788-2,5kOhm / R790-1kOhm. What will it cost shipping to Germany? Many thanks Gerhard