Bottlehead Forum

Bottlehead Kits => BeePre => Topic started by: Doc B. on January 30, 2021, 06:20:04 AM

Title: Knobs ferchrissakes
Post by: Doc B. on January 30, 2021, 06:20:04 AM

How the heck did the four of us who worked on this kit all fail to notice that we didn't have knobs listed on the packing list? Crikey.

They will go out in the mail Monday.

Title: Re: Knobs ferchrissakes
Post by: Natural Sound on January 30, 2021, 02:56:55 PM

It happens. It's frustrating but it happens. If that's the worst thing that goes wrong the planet will remain on it's axis and current trajectory.

Title: Re: Knobs ferchrissakes
Post by: mcandmar on January 31, 2021, 01:32:32 AM

And all the electrical engineers shrug their shoulders...not my department :)

Title: Re: Knobs ferchrissakes
Post by: Deke609 on January 31, 2021, 04:40:11 AM

Fortunately, they're the last thing one installs and the amps will work perfectly fine without them.

Title: Re: Knobs ferchrissakes
Post by: Alby0521 on January 31, 2021, 03:57:41 PM

Hello

I was wondering if the rubber rings that used to go at the base of the 300b in the version one are not included anymore for the version2. There is no more need for them?

Thanks

AB

Title: Re: Knobs ferchrissakes
Post by: debk on January 31, 2021, 11:57:10 PM

Quote from: Alby0521 on January 31, 2021, 03:57:41 PM

Hello

I was wondering if the rubber rings that used to go at the base of the 300b in the version one are not included anymore for the version2. There is no more need for them?

Thanks

AB

On a similar note, I have lead flask rings on top of the 300b's on the BeePre.  Will the BeePre 2 have an issue with  microphonics and need weights on the tubes also?

Thanks

Debra

Title: Re: Knobs ferchrissakes
Post by: Paul Birkeland on February 01, 2021, 05:20:43 AM

Neither the lead rings nor the o-rings are partiuclarly useful with the BeePre 2. There's no harm in using them if you happen to have them.

Title: Re: Knobs ferchrissakes
Post by: johnsonad on February 01, 2021, 09:18:12 AM

I can hit the top plate of my prototype and hardly hear any microphonics with headphones on. Just the expected filament noise. It’s a significant improvement over the Beepre. I tried it with Herbies rings and the lead weights and didn't hear any noticeable improvement. The weights now sit on a few transformers.

Title: Re: Knobs ferchrissakes
Post by: Alby0521 on February 01, 2021, 05:57:48 PM

What diameter were the o ring used in the first model?

Title: Re: Knobs ferchrissakes
Post by: Paul Birkeland on February 02, 2021, 07:09:44 AM

They were about 1-1/4" OD.  Ultimately you'll get slightly better pin fitment into the sockets without them, and that for me would outweigh the non-existent benefit of using them in a BeePre 2.

Title: Re: Knobs ferchrissakes
Post by: Doc B. on February 02, 2021, 09:34:39 AM

Yes, I would not bother with the O-rings either.

Title: Re: Knobs ferchrissakes
Post by: debk on February 02, 2021, 12:54:09 PM

The O-ring is a Silicone O-ring  size -214 (dash 214)


Deb