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Hi. I also have two 310A scopes. Both have had power transformer problems. On one the crt heater winding broke down and I had to add a small filament transformer for the crt filament. On the second

I have two 310A 'scopes that were, if infrequently used, behaving pretty well until, quite suddenly, the one made in around 1963 (S/N 019006) had lost its -150 supply, which incapacitated it.

Hi: One of the former members (former member AFAIK) used to rewind some of the 500 series transformers. He is now? on Tekscopes2. Don't know if he is doing it anymore. There is also a litany of

Hi, Anyone rewinding these? My 561 lost its beam... Thanks

Whether you decide to replace the battery now or not, take a few minutes to back up your calibration data first. Two easy methods: 1) Use the built-in diagnostic routine EXER 02 and record a video

[email protected]> wrote: Sorry, I misremembered. Mine has an '85 date code. Still going strong.

My 2467 battery has a '97 date code, still going strong. I have the gear to calibrate it when it gives up, though. [email protected]> wrote:

Dale, Mia culpa on the TM faux pas.... As an inventor and having fought many patent infringement cases, I am red,faced... Thé Staco (tm) are robust and great workbench units. The GenRad have

We use the date code imprinted on the batteries Over 5-10 years old, replace regardless of voltage J

Jean-Paul - A Staco is not a "Variac," which is a registered trademark. The original Variacs were the variable autotransformers made by General Radio Company. The current holder of the trademark is

David and Dale: YES on all: As we were power elecronics designers since 70s' we have a collection of Variacs, the best are indeed the old Staco and GenRad with ACV RMS and AC . Mains in UK EU =

I suspect that he means one of the portable Variacs supplied cased with an output voltmeter, such as the Type W8MT3VM. For field use I built my own portable cased Variac with an output voltmeter and

Voltage is a poor indicator of remaining charge, lithium batteries maintain a mostly flat voltage over their life with a sharp drop at the end.

I am working on a Tektronix 2467 oscilloscope and need to know if I need to put new 3.7 volt battery in this oscilloscope when to battery reads 3.7 volts.

Thanks @Jean-Paul. What do you mean by "metered" variac. I have a variac. Do you just mean put a meter on it to more carefully calibrate the suggested voltage? Or, if I read-between the lines, where

thank you !

Hello Rafael, Sorry for my late response. I honestly don't know if this works on a TDS620A. I do not have any schematics of the TDS620A but if there are some configuration-resistors on the

I have been a fairly quiet member here for a few years. Electronics has been a hobby my entire life and has been joined at the hip with my business for 33 years. Unfortunately I must close my business

Hi Mike, I don't see your direct email address so I can't respond off list. Qservice web page is: https://www.qservice.tv/ I'm a satisfied customer. Regards, Ignacio -- Este correo

I am looking for a seller from Greece who i THINK was named Qservice however no luck on Fleapay search, any help is appreciated. If a seller in the USA has the same avaiability of parts, please let me