Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84 exptools; site ihlpm.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!ihlpm!parnass From: parnass@ihlpm.UUCP (Bob Parnass, AJ9S) Newsgroups: net.analog,net.wanted Subject: Re: Oscilloscope Recommendations Message-ID: <329@ihlpm.UUCP> Date: Fri, 28-Jun-85 09:03:45 EDT Article-I.D.: ihlpm.329 Posted: Fri Jun 28 09:03:45 1985 Date-Received: Sat, 29-Jun-85 02:25:56 EDT References: <5@intelca.UUCP> Distribution: net Organization: AT&T Bell Laboratories Lines: 54 Xref: watmath net.analog:351 net.wanted:6642 x My first decent scope was a used B&K 1472, a 30 MHz unit actually manufactured by Trio. Its performance and quality of construction were very satisfactory. Perhaps some of the newer B&K models aren't built as well. The newer Hitachi and Hameg scopes don't have the same quality "feel" of the older B&K. I later upgraded to a 60 MHz Tek 2215 scope and have been satisfied with it. My 2215 was an early unit, and was modified for free by the local Tek field service office within the 1 year warrantee period with all updates, including a modification to the switching power supply unit to reduce audible noise and RFI. The only feature I miss on the Tek 2215 is the lack of switchable input filtering (e.g. HF reject, LF reject, etc.). A lot of money was saved by buying the B&K used, although I reluctantly paid list price for the new Tek. I always wanted a Tek, and there was no way to buy a new Tek or HP scope without paying list price plus tax (in Illinois). Although I don't get as much use out of the scope as I thought I would, there's just no substitute when I do need it. I built a 550 - 1650 kHz band reject filter using hand selected components. Having a scope and a sweep generator allowed me to measure filter charac- teristics as I tried different capacitors from my junk- box. A good technician can use a scope for many measure- ments, but I still haven't broken away from using my trusty Fluke 8024B DMM and solid state VIZ Master Vol- tOhmyst. Having the proper equipment, and several cans of cir- cuit cooler spray, gives me the confidence to take in the "tough dog" repair jobs, like the Drake R4C ham receiver that the factory couldn't or wouldn't fix (an flakey product detector caused by a cold solder joint on the BFO transistor). > I am in the market for a general purpose oscilloscope for around the house > trouble shooting (TV's, stereos) and serious experimentation on TTL, and > microbased circuits that are from .01 to 20 MHz. So it looks like I could > use a 100MHz scope and found there are quite a few available. ...... -- =============================================================================== Bob Parnass, Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414 ignore paths in the header, use this one instead