Found it! Avo Meter (Model 8)

[Paul]

Longshot i know, however wondered if anyone had an old fashioned Avo meter for sale? Something like this :

Yes there's some on Ebay, Some on Facebook etc etc, however would rather from a known source than a random one....

Thanks
Paul

 

[Banzaipinabll]

OMG, not seen one of them for a while, my dad used to have one of these good luck with your search

 

[AlanJ]

Do you want a working one or one just for show?

 

[Paul]

Apologies - working really, however anything considered

 

[Courtney Blush]

The problem with those is the unobtanium 15v battery

 

[Courtney Blush]

You can make a battery from 5 LR44's in series but I can't remember if that makes it too long to fit the holder

 

[Courtney Blush]

Anyways I have a really nice one of those but missing probes (standard probes work)

 

[Moonbus]

That's still my dad's go to bit of kit, it's probably on their dining room table at this very moment. I'll see what he did to get around the battery issue.

He used to say the only problem with fixing the these is you needed a working one to fix a dead one, before more compact multi meters where available. I assume he must have others somewhere as he never throws anything away. Will enquire for you.

 

[Paul]

Cool thanks @Moonbus - appreciated

 

[Moonbus]

Spoken to my dad and unfortunately he does not have another one. The last time he replaced the battery was 15 odd years ago and he got it from Maplin. Apparently the battery in it lasts a lot longer now that my brothers and I are not around to keep leaving the thing turned on.

He did add that the guts of the Avo are quite archaic by modern standards and are relatively easy to fix, you will however need a wheatstone bridge like the following to calibrate the wire wound fixed resistors inside.

GPO Wheatstone Bridge in wooden case | eBay

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If the case is solid and the dial is working a unit should be fixable. as a benchmark he paid £47 for his in 1965. I guess thats about a grand these days.

Good luck with the hunt.

 

[Paul]

If the case is solid and the dial is working a unit should be fixable. as a benchmark he paid £47 for his in 1965. I guess thats about a grand these days.

Around £60 for a working one on the bay... £30+ for status unknown... around a tenner less on Facebook, however none near me [emoji22]

Thanks for asking mate - is appreciated - and please thank your dad for his advice [emoji846][emoji1303]

 

[Paul]

Found one - £25 off Gumtree. Almost perfect condition, fully working with no battery corrosion and new batteries!!

 

[Poibug]

I got one too had it a while