Scopes

[w8cbc]

Just for kicks.

I have:

Hitachi V-202. 20 MHz dual trace. Picked it up in Dayton, 2004. It was dirty inside and out. After a good clean-up, it's operationally perfect. Stable, sharp, reliable, does all the tracing and diagnosing around here.

NLS MS-15. 15 MHz single-trace miniscope. Got it at OH-KY-IN hamfest in July. It needed a good cleanup as well, along with recalibration and battery replacement. It's the portable, for the toolbag (work).

RCA WO-78A. 5 MHz single-trace, tube-based, AC coupled. Rescued from the junkpile in one of the transmitter buildings. Had lots of leaky or shorted caps. Is now a mod monitor for the Apache.

Dumont 304-A. 100 kHz single-trace, tube-based, DC coupled. Two of, also junkpile refugees. I was bored. One is now on my bench at work: eye candy, displays WCKY audio. The other needs a vertical-amp filament ballast, it's unstable as hell with the resistor substitute. I learned lots about basic scope circuitry whilst reviving these beasts.

I had a Heathkit IO-103 for some years - 5 MHz single-trace, solid-state. It was a pain in the @rse to keep running, there were always intermittent faults. Fix one, another would develop. I gave it away after I got the Hitachi.

[AG3Y]

I've got an old Heathkit, which was given to me, but I have never run it enough to see if it has similar problems to the one you mentioned. I have an even older tube-type miniature scope that seems to have a low impedance mis-balance. It is linear when fed with a low impedance source ( like the output of an audio amplifier ) but only shows half deflection with a high impedance source. I've kept it around , thinking I am going to fix it some day. But I bet I never will!

I really got spoiled at work, with those 500 Mhz digital storage Teks. I'll never be satisfied with anything less, but I know I will never be able to afford one of those!

73, Jim

[w4rot]

Tektronix Type 310.
Serial#171.
OM let me have it.
Works good.
w4rot

[ve2nsm]

HP 1740A, 100 Mhz dual trace.

I love the 50 ohm input and the trace delay.

[W7DJM]

Old Bell and Howell/ Heathkit, don't even know the model

Old bell and Howell dual trace, #IO-xxxx, "heath"

Tek 475--real fine old scope.


"A few" of the HP 180 series displays, #with an old, about useless O'scope module.


See this post:

here (http://www.qrz.com/ib-bin/ikonboard.cgi?act=ST;f=7;t=100644)

An HP #8557a, and 8558B #spectrum analyzer module which fit the 180 series scope displays

The spectrum analyzers can also be used in my HP 853A display rack

An HP 1818A # time domain reflectometer module--fits the above display units.

(BOY WOULD I LIKE to find a book for THAT)

An HP 8755 series #"swept amplitude" analyzer module--early network analyzer

An IFR 1000S #"service monitor" #which among other things, has basic O'scope function

A Motorola R200xD series "service monitor" #which among other things, has basic O' scope function

A Wavetek/ CT systems 3000S "service monitor", which among other things, has basic O' scope funtion.


A "restored" #Wavetek/ CT systems 3000B #which sorta got resurrected with a second parts unit after the house fire. #Every once in awhile, I can still smell it in #some of this equipment.

A "fixed" #Wavetek/ CT systems 3000B, which was originally a parts rig for the unit above, until, # #

you guessed it....

I bought a THIRD # 3000B #(really cheap) for parts.

Oh, ya, almost forgot, Kenwood SM-220 and SM-230 monitor scopes---afte all, they CAN be used for oscilloscopes!!

Venerable military OS-8, now THAT was packaging genius, considering it's age!!


I don't know why in hell I don't sell some of this stuff, but hey, #if I die, #what will I care

[K8ERV]

Tenma 40 meg. Love Tenma equipment, have a lotta it.

I remember when the first Tek scopes came out, replacing the Dumonts. The Tek's were calibrated, the Dumonts were not, except for the ringing oscillator for time calibration. And the Tek was DC coupled!! Revolutionary!!

Wouldn't leave home without my Tenma.

TOM K8ERV Montrose Colo

[K8ERV]

Quote[/b] (W7DJM @ Sep. 02 2005,23:43)]I don't know why in hell I don't sell some of this stuff, but hey, #if I die, #what will I care
IF you die? Aren't you being a bit optimistic? # http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif

TOM K8ERV #Montrose Colo

[W5HTW]

Only one I have left now is the Tektronics 2215A dual trace, 60 mhz (I think!)

Oh, and a Heath HO-10 monitor scope, which doesn't really count, I guess.

[KC7UP]

I have a 1960 Heathkit Ignition analyzer.
Curt

[K7FE]

I have three Tek scopes for myself and two B&K's that I use for loaners.

73,
Terry, K7FE

[K6UEY]

There is a saying in the electronics Industry that a lot of the ole timers live by, " HP never made a scope,and Tektronics never made a signal generator".
In my experience there is more fact than fiction in that little statement. # # http://www.qrz.com/iB_html/non-cgi/emoticons/cool.gif

[K7FE]

You are right about that one Orv. When I worked for HP, I could check out any gear and take it home. I almost always had a spectrum analyzer, sweep generator and other toys on loan from HP, but I used my own Tek scopes.

73,
Terry, K7FE

[N5PVL]

My all-around favorite is the Leupold 2x7 variable.

It is compact, and the optics are really excellent. I've had these on a number of magnum rifles and have never had one show any tendency to drift off of zero from the shock and recoil.

I also have an old Heathkit scope, but it is not nearly so attractive or reliable. In fact, it drifts quite a bit and has to be warmed up before each use.

[W7DJM]

""My all-around favorite is the Leupold 2x7 variable""

I don't think "we" are gonna be able to count that. The bandwidth of the vertical amplifiers are not good enough for effective troubleshooting, and the horizontal sweep selection is fairly "narrow."

Additionally, that particular scope was a little small for most workbenches, and the trace could sometimes be hard to see in dim lighting.

[N7VQM]

Quote[/b] (W5HTW @ Sep. 03 2005,07:54)]Only one I have left now is the Tektronics 2215A dual trace, 60 mhz (I think!)
Yep, they're 60MHz scopes. I've got one, too.

[AC4BB]

I have a redfield that works greay on my 30-30.

[ae1x]

I have three (3) 'scopes at the moment:

RCA Institutes 5Mhz. AC 'scope kit.
Ballantine 1066B 20Mhz. dual trace 'scope
H-P 1707B 75Mhz. dual trace 'scope

I've had the RCA Institutes 'scope for years and it's been used to fix lots of stuff. It still works great. I got it when they went out of business. I used this along with an adapter I designed and published in QST to view my 10mtr output signal for analysis.

I recently purchased the Ballantine 1066B off of eBay. I checked it out and it works properly.

The H-P, I recently received from a fellow amateur. I have only checked it out briefly. The traces display, but there is a serious blooming problem which indicates that it needs a new display tube.

Ken

[W0LPQ]

Tek 454 for RF.
Tek 212 for audio.

Bill, W0LPQ

[w8cbc]

AE1X - I ran across your adapter in the '90 ARRL HB. One of my planned projects is to build a variation of it for that 5 MHz RCA, probably with a 1496 as I have one on hand that I've already wired as a general-purpose mixer. Your sampling transformer was already a good clue - did that with my deal here - I hadn't considered that a few turns around the coax would do.

[K8ERV]

Quote[/b] (N5PVL @ Sep. 04 2005,07:24)]In fact, it drifts quite a bit and has to be warmed up before each use.
Sounds like my wife---

TOM K8ERV Montrose Colo