[time-nuts] HP-113AR vs. BR differences?

Brooke Clarke brooke at pacific.net
Wed Jul 19 16:48:10 EDT 2017

Hi Jeremy:

The HP Journal for Nov - Dec 1959 has the HP 113 AR as the cover feature.

Photo of some HP T&F stuff including the 113 AR

Have Fun,

Brooke Clarke

-------- Original Message --------
> I'm trying to understand the differences between the HP-113AR and 113BR
> "Frequency Divider and Clock." From the pictures, the AR lacks a
> front-panel BNC for the clock 'tick,' having only three BNCs instead of the
> four that the BR version has. Didier's site has a manual for the 113BR but
> I've not yet found one for the AR. There was a discussion here in 2007, in
> which a David Forbes of Tucson, AZ wrote that he had a 113AR manual. Any
> information or leads would be appreciated.
> Jeremy
> Sent from my iPad 4

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