What do I have? What fuse value needed?

geoff_in_nc

Hi folks,
First time poster, long time owner of what I've thought were called either "Model 5" or "Model 5A" bookshelf speakers. They look pretty similar to the Monitor 5 picture shown in the old products archive, but not the same. Mine have the faux walnut woodgrain sides/top instead of black. The dimensions are 21.75"H x 9"D x 10.5"W (depth measurement taken with grillcloth frame on). Serial Numbers are: 5 115182 and 5 115173 - serial #'s make me think they're Model 5's not 5a's . I'm pretty sure I've owned these since somewhere around 1978-1980, purchased new. Can anyone positively identify these? I can try to get a pic or two if anyone thinks its worthwhile.

The real reason for posting though is that I need to get a new fuse for one (lost, not blown) and can't read the other. These are the older ~1.25" glass tube fuses that used to be used in cars "back in the olden days" . What amperage is acceptable for these speakers? Anyone?

Thanks,

Geoff

Ricardo

Welcome Geoff; pictures will definitely help; maybe a Monitor 5?

Can't help you on the fuse rating, but someone will chime in.

george daniel

IIRC,, they were 1 amp fast blo,,, bit I'm not 100% sure,, except for the "fast blo" part. Since the fuse is your tweeter protection,,the one amp fast blow will get you up and going,,I have a pair that I gave to my daughter,, I'll get her to look to be sure.Sweet little speaks aren't they,,good luck.

geoff_in_nc

Here's a pic of back/front (obviously). For some reason the direct picture posting didn't work, so here's a URL.

http://img238.imageshack.us/my.php?image=geoffspeakerix4.jpg

And George, yes, I love mine. Sadly its been much too long since I've used them, and I'm pulling them out of storage to bring back some REAL music.

Thanks all,

Geoff

Joe08867

I know they are fast blow but I thought the value was more like .75 fast blow. It sounds like a first series monitor 5. Although I think they cam in a couple of colors like Oak and Walnut back then.

Ricardo

Yup; Monitor 5 (probably A's) with Peerless tweeters. They look great by the way.

rmaiers

My RTA 12Bs have peerless tweeters and use 0.75 amp quick blow fuses.

Schurkey

If it makes a difference, Bussman (Buss) quick-blow 1 1/4 X 1/8 glass fuses are identified with an "AGC" prefix ahead of the amperage rating.

http://www.cooperbussmann.com/3/QuarterInchDiameterFerruleFuseSelectionGuide.html

Littelfuse quick-blow 1 1/4 X 1/8 glass fuses are identified with a "3AG" and/or "312" prefix ahead of the amperage rating.

http://www.littelfuse.com/data/en/Product_Catalogs/AA101-B.pdf
(page 8)

Around here, there was no mention on the packaging whether the fuses were fast- or slow-acting--although in the last year or so, SOME of the Buss packages now specify.