https://www.bulbtronics.com Part # 5149 The search for Oscilloscope 212 doesn't work, but its listed under the "Equipment using this product" tab.... David verizon.net@groups.io> wrote:

Please share the link you mentioned so I can check out their batteries. ALSO, beware that the power supply sections of some of the "2XX" models that use these batteries will not regulate unless a good

Hi Bob, Years ago I posted this information about the batteries I found for the model 214 which I own. With a little research comparing the battery size of your 211 to my 214 I think you will find the

I have a 2465A but don't have any idea where a motor like that is used. Any help?? Thanks, GerryR KK4GER

I'm not 100% sure, but I think that same motor is used in the HP 8640B (and, possibly, other models) as well. Thanks, Barry - N4BUQ

Yesterday I bought a model 211 scope at the Dalton hamfest. While it works I need to replace the batteries. He seller already has the batteries out and I assume they are bad. It works without the

Hi Mark.. Thank you for the links. Seems those threads have gone quiet. It might mean that the developers had no plans to offer a commercial outcome, but they supported open sourcing, or demand isn't

It is Tek part number 147-0035-00 and will fit Tek 465, 465B, 466, 464, 475, 475A, 475M, 2445 & 2465 series scopes. Greg

Power supply voltage and power quality are the foundation of everything else. This was and remains the most important lesson for me when working with these scopes. -- Michael Lynch Dardanelle, AR

Thanks, Chuck. I'll do a careful inspection and deoxit cleaning of the Trigger Hybrid chip. I do have a 2465 (two, actually) that I can borrow a known good chip from if necessary as well. Tony: As

That means that the trigger hybrid, which does all of the time and frequency measurements in the "B" model, is having trouble triggering on the signals you are presenting to it. You can try removing

Let me know where are the pictures, when I went to TekScopes.io there aren't the picture you are referring to. Have a great weekend.

Albert, Thanks! That was it! I have never seen another one of these. Steve

Hi fiftythreebuick, A thread about the 555 is a great idea. It could be very educative for those of us who have never seen one in person. For example, you could describe what is your convenience of

I am finally getting this scope to the point of getting ready to do a full, albeit low precision calibration (+/-10% will be fine for my purposes, and within my reference equipment range). I am seeing

If anyone is interested it more info about the 555 it should probably be in a separate thread in order to keep this one on topic...

Hi Ernesto! The 555 is my favorite oscilloscope ever... An absolute pleasure to operate, incredible versatility (considering the range of letter & 1 series plug-in units) and the typically excellent

Silly me. 140 volts has a glitch. measures slightly low with dmm but scope shows 120 hz 30 volt glitch. Its the power supply cap! its amazing the scope runs as well as it does with this fault.

I am not associated with this seller. I found a seller on ebay selling the Seimens 1AD3001-0A brushless motors for a reasonable price. The shipping is steep for USA Parcel Post, but the total cost

Steve, that might have been a 7704A with P7001 DPO. http://w140.com/tekwiki/wiki/P7001 Albert