Bottlehead Forum

Bottlehead Kits => BeePre => Topic started by: RPMac on February 04, 2014, 09:39:21 AM

Title: BeePre blowing 1A fast-blow fuse
Post by: RPMac on February 04, 2014, 09:39:21 AM

My BeePre played for about 4 weeks with a 1A fast-blow fuse in it. Two days ago the fuse blew. The 1A slow-blow fuses the salesman gave me turned out to be fast-blow and the two I tried blew.

The closest the parts guy could come up with are 1.25A medium-blow...would it be safe to use these?

I did a resistance check and all values were similar to the first check. I listed the ones that may be questionable below. The ones with ~ were varying.

Is it safe to power up without the tubes in?

2- ~3.5M
6- 146K
10- ~300K
11- 146.9K
15- ~300K
17- ~3.5M
22- ~300K
25- ~2.6M
29- ~4.95M
30- ~4.93M
31- ~4.88M
34- ~4.81M
35- ~4.87M
36- ~4.85M
40- ~500K
43- ~480K
46- ~390K

A3- ~3.5M
B3- ~3.5M

C4&D4- ~3.7M
C5&D5- ~3.7M
C7&D7- ~145K
C9&D9- ~145K

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: fullheadofnothing on February 04, 2014, 10:03:26 AM

We have been shipping 1.5A  fuses with these for a while. I just realized the parts list never got changed. The change was made after a large number of people in the first run of kits had problems with the 1A.

Do not power on without tubes.

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: RPMac on February 04, 2014, 10:27:45 AM

Thanks for the quick reply Joshua.
I'll try the 1.25A I have.
Does it make a difference for a slow or fast blow 1.5A?

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: fullheadofnothing on February 04, 2014, 10:32:17 AM

Fast is fine.

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: RPMac on February 04, 2014, 10:44:51 AM

Thanks.

I didn't realize how much bigger the BeePre soundstage was until I put my stock FPIII back in.
Great preamp!!!

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: Gerry E. on March 29, 2014, 05:20:10 AM

Quote from: fullheadofnothing on February 04, 2014, 10:32:17 AM

Fast is fine.

What is the most preferred fuse value and type? 1.5A and fast or slow blow?  Thanks.

Gerry   

Title: Re: BeePre blowing 1A fast-blow fuse
Post by: johnsonad on March 29, 2014, 05:28:42 AM

1.5 amp in either fast or slow.