Favorite replacement valves on a Bach 50

ttf_connman93 · Post by **ttf_connman93** » Thu Apr 20, 2017 11:45 am

Hi all,

I'm likely adding a Bach 50 to the stable and I'm looking at purchasing used and replacing the valves. What replacement valves are your favorites on a 50? At this point, I have a very open mind for any options.

Thanks!

ttf_BGuttman · Post by **ttf_BGuttman** » Thu Apr 20, 2017 12:03 pm

For years the Thayer was the usual replacement. They used to sell an inline kit (valves and tubing) for around $1200 which your tech would just put in to replace the F-attachment.

Nowadays there are more choices than you can test. Rotax, CR, Hagmann, Meinschmitt just to name a few.

Nearly anything will be an improvement over the undersized Bach valve. I remember one colleague who replaced the Bach valves with a double dependent (F/flat E) from a Reynolds with the forward pointing loop on the F-side.

ttf_tbathras · Post by **ttf_tbathras** » Thu Apr 20, 2017 12:21 pm

I bet the new Olsen ball bearing rotor would be nice if you want to keep with a traditional type rotor. I love the ball bearing axials.

ttf_elmsandr · Post by **ttf_elmsandr** » Thu Apr 20, 2017 1:03 pm

Lots of options. I know you like the blow of your Thayers... you won't get that from anything else. If I were to be in that market again, I would probably buy a set of the infinity style with bearings or a shires set. Advantage with the shires set, you could even find some used and save a couple of bucks.

You could also go the rotor direction. Lotsa love for the CR rotors, but there is plenty of competition with M&W, rotax, and now the instrument innovations guys as well.

For fun, consider the trubore direction. This is my current favorite, I have them on my Bach 45 and a Holton flared frankenbeast (I use a 50 slide and a 50 tuning slide, does that make it mostly Bach?) . Similar openness as the Thayer, but just a bit more refined. Maybe loses a little bit on the top end string section burial meter, but overall a better feel for me. I've been meaning to make these interchangeable with my Thayers and 50 flare, but just haven't had the time to move that stupid main diamond flange.

For all conversions, I hate the Bach handslide receiver. I prefer the Edwards or shires parts that are a little shorter. I just like that geometry better and I think things line up better that way. Maybe I'm screwing these horns up, but I like them more now.

You're welcome to come over and blow any you want from my collection and see what I've done to make them fit, you know where I'm at.

Cheers,
Andy

ttf_connman93 · Post by **ttf_connman93** » Thu Apr 20, 2017 1:27 pm

Thanks everyone!

Thanks for the detailed reply, Andy. I'm leaning more towards an improved rotor although I'm trying a 50 with the Infinity valves and quite like it. Thayer type valves are just so heavy.

ttf_bigbassbone1 · Post by **ttf_bigbassbone1** » Thu Apr 20, 2017 2:35 pm

I would go Thayers. Bachs work so well with them. I currently play a bach with hagmanns and Edwards slide. The valves are great, but I definitely miss having thayer valves. They just make low register playing so easy.

ttf_Burgerbob · Post by **ttf_Burgerbob** » Thu Apr 20, 2017 2:39 pm

Thayers and Bachs are like peanut butter and jelly.

The new Olsen axials are especially good. Hit up Benn Hansson if you have questions about them.

ttf_Sliphorn · Post by **ttf_Sliphorn** » Thu Apr 20, 2017 3:11 pm

I also hear the Olsen ball-bearing rotors are nice. I'm hoping you all will join with me and unofficially dub these new valves OFV. Olsen Fancy-Valve.

Just for fun, go with OFVs.

ttf_Nathan Wood · Post by **ttf_Nathan Wood** » Fri Apr 21, 2017 6:51 am

+1 for replacing the Bach handslide receiver with a shorter one... I had this done to accommodate my Shires slide and the horn just plays better. Centers better throughout, responds slightly better in the valve register, and contributed to bringing the pitch up (was super flat out of the factory and I had a little over a half inch cut off of the tuning slide already) so I can have more wiggle room for very sharp groups, and the threads still fit the original Bach slide. I don't understand the mechanics of why this worked but I'm very happy with the results.

ttf_anonymous · Post by **ttf_anonymous** » Fri Apr 21, 2017 7:11 am

If you end up going with Thayers, you should talk to Bill Milashius at Dynamic Machine up here in Minnesota.

I had him build an assembly for my 42 and my tech installed it. Best thayer setup I've tried hands down. Had a friend install a Bass assembly on his Corp. 50, and it's stupid good.

Bill is an ace machinist, and the stuff he does with these valves aren't done by others. He even owns a lot of Mr. Thayer's equipment that he bought from the estate. The valve responds immediately like a rotor, but all the attractive qualities of a traditional Thayer. If you're not in a hurry, it's your best bet. PM me if you have more questions.

ttf_anonymous · Post by **ttf_anonymous** » Fri Apr 21, 2017 7:11 am

If you end up going with Thayers, you should talk to Bill Milashius at Dynamic Machine up here in Minnesota.

I had him build an assembly for my 42 and my tech installed it. Best thayer setup I've tried hands down. Had a friend install a Bass assembly on his Corp. 50, and it's stupid good.

Bill is an ace machinist, and the stuff he does with these valves aren't done by others. He even owns a lot of Mr. Thayer's equipment that he bought from the estate. The valve responds immediately like a rotor, but all the attractive qualities of a traditional Thayer. If you're not in a hurry, it's your best bet. PM me if you have more questions.