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iiipopes wrote: ↑Mon Jan 04, 2021 10:01 am Hmmm. In the french horn context, I always thought a "compensating" french horn was a single horn with a 4th valve to help the low range, much as a 5-valve tuba has either the 2+3 or long-whole-tone 5th valve setup to help with the low range. Hmmm.

bloke wrote: ↑Mon Jan 04, 2021 11:32 am

iiipopes wrote: ↑Mon Jan 04, 2021 10:01 am Hmmm. In the french horn context, I always thought a "compensating" french horn was a single horn with a 4th valve to help the low range, much as a 5-valve tuba has either the 2+3 or long-whole-tone 5th valve setup to help with the low range. Hmmm.

nope.

The horns to which you refer are simply enhanced single B-flat horns, just as a King 2341 is an enhanced King 2340 B-flat tuba, but not “compensating“.

Compensating double horns are still used - to some extent - in the UK. I've seen some Paxman (English-made/expensive) compensating double horns, and have serviced them.

In the 1960's and 1970's, The Getzen Company flooded the USA with these cheap/mechanical linkage/European-import compensating double horns.
I never liked them, though they were (other than - seemingly - the solder joints leading into the 1st rotor and out of the 3rd rotor) titanic - in their sheet metal gauge, however.
OLD GETZEN COMPENSATING DOUBLE FOR SALE ON REVERB:
(In particular, look at the fourth picture, where the BACK of the instrument is shown.)
https://reverb.com/item/2095488-getzen- ... rench-horn

JP/John Packer (an English concern that sells very high-grade China-made instruments, and also caters (along with American) to English tastes, offers a compensating double horn in their lineup. I'm fairly sure that they do not bother to stock any of them, though, in their USA warehouse...

INFO: https://www.jpmusicalinstruments.com/pr ... cker-jp163