[HBR] Octals and such

[Shoppa, Tim]

A real oddball is the Hallicrafters SX-110, 1959 and later, that uses only octals (several of them metal envelope octals) when everyone else had gone all-miniature for receiver tubes by then.

My best guess is that they had a warehouse full of octals that they had to get rid of!

Several of the HBR-series mods shown in the 60's QST's use octal tubes for the mod, presumably because that's what the author had on hand.

Tim N3QE
________________________________________
From: HBR [hbr-bounces at mailman.qth.net] on behalf of Stan McIntosh [mcinsand at gmail.com]
Sent: Saturday, November 22, 2014 10:13 PM
To: HBR Receiver List
Subject: [HBR] Octals and such

The discussion on timing for octals and minis has me wondering about a
recent puzzle.  I recently acquired a Hammarlund HQ-140x and a pair of
Hallicrafters SX-99's.  Both are mid-50s vintage, but the former is mini
(except for the power supply) while the latter is all octal.  Did some
companies just have different philosophies?  Also, what about the loctals?

Regards,
Stan
KD4BTH
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