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Thanks a lot, do it. Regards Gianfranco

There are other diodes that have negative resistance regions, such as the Gunn, with characteristics similar to TDs, but used pretty much only for microwave oscillators, and the DIAC (if you count

Hello, I was wondering if anyone has the attenuator assembly for an HP606B. I understand that one can use an HP 355 outboard of the generator but I'd prefer to have the assembly to restore my unit to

It's simple, transistors got a lot faster. If the basic circuit is fast enough, you don't need any such compensation. PIN diodes are inherently slow devices, so their applications are completely

The important characteristic of a tunnel diode is it's negative resistance region. This provides a switch action that can snap on far faster than anything else available at the time. Tunnel diodes are

A tunnel diode is a low power high frequency negative resistance device. They were used at a time in the late 50s and early 60s before silicon planar devices became readily availably to produce

For tunnel diode and GR lovers, I just scanned what I consider a gem: the manual of GR 1167-B 500 MHz scaler. I bought it with a pristine GR 1192 counter and all the original manuals at

It is obvious that HP and Tektronix designers had a great fondness for the tunnel diode. You can find them incorporated into lots of scopes and other test equipment. Now that tunnel diodes are not

see email below from eyetoob... replies to his email address are undeliverable. I hope you see my reply this way "eyetoob". The CRT has been gone for weeks. Sorry. GL OM. Bob ... ... ... and the beat

Most of the time the problem is with that air variable cap on one of the boards shorting out. Please check to see that it is performing in the circuit per the schematic.... It adjusts the sine wave

See if anyone in the Linux community can help. You may have to join a mailing list. Probably the largest group is that for Ubuntu, that being supposedly the most popular Linux distribution. (I you are

I have a fully working 16702A. i managed to communicate using an X11 emulator (cygwin xterm) on my pc. However the screen is limited to 800x600. does anyone know how to make the x window larger ? I'd

Hello, Rich and the group-- I haven't tried this, but I wonder whether a narrow strip or two of heavy-duty aluminum foil inserted into the threads might act as a shim, tightening the threads when you

I have the manual here for the 343A, which includes the diagram, theory of operation etc. If you like, I can make a PDF and send it to you. Regards, Ton, pa0tbr

The first fundamental rule of threaded fasteners is you always back screws up until you feel the thread "click" before you start turning in the tighten direction. The second fundamental rule is most

Ok, good. It may be useful for others. I hope HP (aka Agilent) will have nothing in contrary - I think it is out of production since 25 years at least. Marco IK1ODO

Hi Marco, file is now in the upload section of Didier's KO4BB site thx Marc

----------------------------------------------- Hi, Thank you Marco! Your scan is very good. Now I can debug my 3310. About the tunnel diodes, I will keep my fingers crossed...! Regards, Antonio

I meant to say "finger tighten" only before using a screwdriver!

A heads up: I just learned, the hard way, that these electrolytic caps (the power supply ones with the screw terminals) are very easy to strip the threads on. They are aluminum threads, and the screws