The Shop > Tools
Controller board for a C3 mini lathe?
awemawson:
When I was at school in the mid 1960's the father of a friend was a director of Avo. With only a bit of pushing I managed to wangle a trip round their 'factory' as was on Vauxhall Bridge Road in Victoria. It was actually a sequence of Victorian and Edwardian houses and shops that had been 'knocked though' with little odd corners doing fragments of the largely hand manufacture. Numerous 'Douglas Coil Winders' (Douglas being owned by Avo) producing coils for the Avo's and also various Signal Generators and other test equipment. The smell of shellac pervaded the place.
Soon after that they moved to Dover (Avocet House!) as they combined with Megger.
My meter of choice is still an Avo 8 Mk6 which is always out and at the ready - the DVM only coming out rarely.
Pete W.:
Hi there, Baron,
--- Quote from: Baron on December 30, 2014, 12:23:33 PM ---Hi Pete,
You hang on to the AVO ! I have both AVO 7 and a pair of 8's. One over 40 years old. Digital meters are OK for some jobs, but there are many jobs where an analog meter can't be beaten.
--- End quote ---
:offtopic:
How do you cope with the 15 volt dry battery problem (for the high Ohms range)? Years ago, I saw a press review of a DC to DC converter that produced the 15 volts from the 1½ volt battery but it never seemed to catch on. Also, I never did work out how you switched it on.
By the way, my Senior Engineer mentor when I was a junior engineer used to emphasise that the Avo 8 is more sensitive than the Avo 7 (lower movement FSD) but the Avo 7 is more precise than the Avo 8 because the Avo 7 uses wirewound resistors while the Avo 8 uses carbon or metal film resistors!
awemawson:
But you only need the 15v for the high ohms ranges where a dvm is probably better, anyway loads of batteries about if you need them:
http://www.ebay.co.uk/itm/BLR154-BATTERY-FOR-AVO-METERS-15V-504-Multimeter-Alkaline-/400435143828?pt=UK_ConsumerElectronics_Batteries_SM&hash=item5d3bcb6494
http://www.ebay.co.uk/itm/AVO-8-METER-MULTIMETER-15v-BATTERY-BLR-121-AVOMETER-/271712553197?pt=UK_ConsumerElectronics_Batteries_SM&hash=item3f435488ed
steampunkpete:
Thanks Andrew,
I looked on ebay years ago, no luck, and didn't think to check again, and I couldn't find any from any other source. I've been making do with two 9-Volt batteries taped together and adjusting out. I know where to get the right one now.
Thanks again,
Pete
awemawson:
You're very welcome lots about, here's another:
http://www.brewstersbatteries.co.uk/catalog/blr154-gp220-15v-avo-battery-p-393.html?zenid=8e585daa5fefef066b40de12b15d7d0f
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version