Sign in to see your user information My eBay Expand My eBay Summary Recently Viewed BidsOffers Watch List Purchase History Selling Saved Searches Saved Sellers Messages Collect Spend Learn more Notification Expand Basket Loading.User Agreement, Privacy, Cookies and AdChoice Norton Secured - powered by Verisign.Makes a very expensive calibration lab to have all those different boxes.The possibilities are a Bradley 192 or a Heathkit IG-4505 from the US.
A post the othet day suggests the meter on the Bradley displays the deviation from spec. Does anyone have any comments on these two calibrators Due to age any purchase will be bit of a lottery and I cant afford to get the calibrator itself calibrated, but part of the fun for me is using the equipment rather than getting exact results. Id be interested in seeing the manuals before I commit and I would be grateful for PDFs if anyone has them. These are not cheap even though they are now pretty ancient, selling on ebay for 100 if in good working order. My preference would be the Bradley over a Heathkit but this is based on prejudice rather than real facts. Phil. I presume we are talking about the later model with the brushed silver front panel IIRC there was an earlier version with a yellow front panel They are very easy to use with deviation of time or voltage shown on the center zero meter with - 3 - 10 ranges. Bradley Oscilloscope Calibrator Type 192 Ly Plus A FastA nice feature is that there are buttons to set the number of vertical divisions required also ve -ve dc voltage out plus a fast rise output of (slightly) variable amplitude. Very reliable, cant remember having to fix one, and rarely required adjustment. I posted a picture a couple of days ago of the front panel which gives some idea of the facilities - see thread about the Telequipment CT71 transistor display tester. The Telequipment C1 or C3 calibrator referred to is an alternative to the Bradley 192, though in a rather less sophisticated league. Could mean less to go wrong). Although it doesnt get used as much now as it used to I would say it is one of my most valuable bits of test gear. Id recommend one to anyone looking to maintain and calibrate test equipment. If Bill is going to scan his manual Id like a copy as mine went missing during the building work for our extension (although it is reliable you never know). Ive seen the Bradley 192 for sale at 120 - 165 which, although not out of the question, is too much for me in the next couple of months. If anyone scans a copy of the manual for Brian Id certainly like one in advance of purchase as it does look like the best bet at the moment. Bradley Oscilloscope Calibrator Type 192 Ly Portable Calibrator ForThere is a Fluke 515A portable calibrator for 200 delivered from the US but again not for me this month. Theres the older 067-0502-00 and -01 amplitude generator, 106 pulse generator, 193 (or was that 163) leveled sine wave generator, 181 and 184 time mark generator, 2901 time mark generator and the newer TM500-series instruments: PG506, TG501, SG502, SG503 and SG504. The TM500 stuff was really fine calibration instrumentation, so may still be a bit pricey. Fluke used the Tek TM500 instruments to calibrate Fluke and Philips scopes. I suppose we equally have the Avo Supporters Group here in the UK. Both valuable at collecting and publishing information exclusively about their companys products. It was particularly convenient to use as it contained everything in one box, not the half dozen different instruments which Dean H notes.
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