So, finding the bad transistors seems to be the easy part. Finding replacement transistors is another story. According to the parts list I need the following: *Qty 2 151-0306-00, NPN, CHECKED. Accordi

Would any of this hurt the 723 regulator? To me it looks like it wouldn't affect it. John Sent from my BlackBerry 10 smartphone. From: hewpatek@... [TekScopes] Sent: Friday, December 11, 2015 19

Yeah, I'm excited to have a working one, as well as a broken one to learn from! I did check Q607 and Q609 and they check out OK with the diode test function on my Fluke. C660 is a large (about 18mm x

The replacement 314 arrived and it's a gem! So, I now have a nice little working 314. It seems to be very close in calibration when I connected to my 184 and storage even seems to work. It came with t

Yeah, I just pulled on it a little bit and it popped right out. I notice that many of the 184's listed on eBay have various different bulbs in them that have been replaced. The pic in the manual shows

Yeah, I could modify it I suppose. I'm not sure it's worth that much trouble. There are two bulbs on the front. The oven bulb works and that one is amber. The power one is white. I really don't care a

Actually, I just realized it pops out the front. What was in there is a Dialco #39 10v, .04A with a white translucent lens. It's definitely burned out. I see some similar type bulbs on eBay but in lot

Has anyone changed out the Power Indicator light bulb in the Type 184? It appears to be a 12V incandescent bulb. If I did the math correct it draws about 1W of power at 80mA. It's on the 12v rail with

Well, the following statement from the 314's Theory of Operation chapter didn't escape me: "Circuits that are commonly used in the electronics industry are not described in detail." John 2230/2232/223

That's a lot to swallow (for me anyway,) however, when I compare that with the theory of operation section in the manual it now makes much more sense to me. The oscillator/inverter circuit is what was

What I meant to say here before hitting send prior to finishing my message was: Great...another possible schematic error to throw off an electronics novice like me!

Great, CR628, 152-0460-00 in the parts list, shows as a 1N5299 (100V, 1MA.) I don't have the scope in front of me to physically look at it. The service manual I have doesn't have any corrections for t

Ah, a Tom Clancy fan? To be honest, I've never read a single one of his books but I often just use my real name on forums and many assume I'm just a Tom Clancy fan. Since it's right on top and easy to

Raymond, I've flagged that to check when I get back. I was also looking at what the last person might have been dealing with. F605 has been replaced (very poorly, I might add) and P606 unplugged. That

David, Wow. I was hoping you'd be the one to answer. That was exactly what I wanted to know. I've actually noted all of that in my pdf manual for future reference. THANK YOU! (Service Manual sellers:

Well, I believe I checked the legs of Q658 and I remember having 5.1v on the base but don't recall what I saw on the emitter since there's no voltage listed there for me to check it against. I'm prett

Well, if that's the case, what would bring ALL the voltages to 0 coming out of T660? Sent from my BlackBerry 10 smartphone. From: hewpatek@... [TekScopes] Sent: Monday, December 7, 2015 13:22 To

Update on my 314 saga. The seller offered a full refund for the DOA 314 and said to keep it. However, he had another 314 listed on eBay. It didn't show up in my searches because they listed it under "

Wow. That's a pretty neat document! I almost deleted the email because I didn't have any equipment that old but decided to take a look at it anyway. Thanks for posting! To: TekScopes@... F

So, you're saying it might actually still work? Now that you mention it, I do see quite a few scratches on the inside of the screen, no doubt from the piece of glass rattling around in there. And, now