Kenwood CO133D Oscilloscope

[kungfugeek]

Is anyone familiar with the Kenwood CO-133D Oscilloscope? I have a chance to buy one used for 50 bux, but not sure on the specs of this unit. I can't find any info on the net about it. I don't have a scope now, would it be good for my bench?

 

[Vince@Speck]

[quote author="kungfugeek"]Is anyone familiar with the Kenwood CO-133D Oscilloscope? I have a chance to buy one used for 50 bux, but not sure on the specs of this unit. I can't find any info on the net about it. I don't have a scope now, would it be good for my bench?[/quote]

Are you sure it's not CO-1303D? I have an old Kenwood test gear catalog and that's the only model that atarts with "CO-"

Vince Poulos
Speck Electronics

 

[kungfugeek]

This is just what the seller told me. What can you tell me about the one in your catalouge?

Thanks!
kfg

 

[kungfugeek]

I got a few hits on that model number you posted, looks like a single channel 5Mhz scope? Prolly limted use for audio testing, huh? I am under the impression that you really need at least 20Mhz, correct?

kfg

 

[Vince@Speck]

[quote author="kungfugeek"]This is just what the seller told me. What can you tell me about the one in your catalouge?

Thanks!
kfg[/quote]

Do you want Kenwood's marketing copy, or my impressions?

Kenwood's brochure says: "High-quality scope with All the sensitivity"

Vince says: Huh!!

My observation: Single channel, 5Mhz scope, with 3" CRT. Bananna jacks for the input, 3 position sensitivity selector. It's about the most basic scope I've ever seen. I think I built a Heathkit scope 35+ years ago with more features than this thing.

My opinion: Take a pass on this one. You can do a lot better in o-scope's. By the way... I like Kenwood test gear. We have some of their programmable lab power supplies and AC voltmeters. Very nice equipment.

$50 - $100 can buy you a very decent used Tektronix dual channel scope on ebay.

Regards,

Vince Poulos
Speck Electronics

 

[kungfugeek]

Good deal, I am going to pass. Thanks!

 

[PRR]

> Single channel, 5Mhz scope, with 3" CRT. Bananna jacks for the input, 3 position sensitivity selector. It's about the most basic scope I've ever seen.

De-Luxe next to an Eico 427. OK, the EICO was a full 5", but never sharp or accurate. It claimed 500KHz (actually I think it claimed 500KCPS) but the gas-tube sweep would not lock above 100KHz.

I did a LOT of good work with the EICO, but hypersonic oscillations were always a mystery.

For basic, hard to beat my rebuilt Allen B. DuMont. 3" tube, un-square raster (single-ended deflection and stray flux), no retrace blanking, drops dead at 21KHz (mostly by design), sensitivity 100mV-10V uncalibrated variable pot, two sweep ranges with pot trim. Oh, 1/4" guitar-plug inputs to match the unbalanced patch panel we had in the lab those days. It will display the audible sound in an electronic music class, and nothing more. Big Feature: minimal controls, hard to set wrong. If you set all the knobs to MAX, and feed signal, you WILL get a picture, then just fiddle to tune it in pretty.