Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: joesatch on February 26, 2023, 03:06:03 pm

Title: Fuse help identification needed
Post by: joesatch on February 26, 2023, 03:06:03 pm
I need to replace a missing fuse on a Lexicon unit i have. All i have is the schematic and a photo from a working unit online. i have never seen a .06 amp fuse. Is that what F4 is?

Title: Re: Fuse help identification needed
Post by: sluckey on February 26, 2023, 04:06:06 pm
Yes

https://www.mouser.com/ProductDetail/Bussmann-Eaton/BK1-TDC11-60MA?qs=X6dUI926No%2FDfZDcvBa4qQ%3D%3D
Title: Re: Fuse help identification needed
Post by: joesatch on February 26, 2023, 04:24:37 pm
very rare fuse indeed, non-stocked. i wonder where i can get one of these, maybe lexicon. Amz has em for $100 each  :l2:  https://www.amazon.com/TDC11-60MA-Miniature-Acting-Cartridge-31-75mm/dp/B07RZ2TSY7

i ordered the Mouser 62ma they had in stock. strange stuff
Title: Re: Fuse help identification needed
Post by: sluckey on February 26, 2023, 06:24:23 pm
Maybe share the entire schematic. We may be able to come up with some alternative solutions. A 1/10A (100mA) is easier to find. For a last resort use a .22 cal LR bullet. Maybe become a candidate for the Darwin Awards.

Title: Re: Fuse help identification needed
Post by: joesatch on February 26, 2023, 07:22:31 pm
Maybe share the entire schematic. We may be able to come up with some alternative solutions. A 1/10A (100mA) is easier to find. For a last resort use a .22 cal LR bullet. Maybe become a candidate for the Darwin Awards.

it's 7mb cant upload it
Title: Re: Fuse help identification needed
Post by: glass54 on February 26, 2023, 09:19:06 pm
+1 with Sluckey. (Been in the same situation) 100mA should be fine.
Anyway it can't be too critical, because the fuse has the same value for 100-120VAC and 220-240VAC  :laugh:
Save your money for real components. (also 10x 100mA fuses are a lot cheaper than 1x T0.06A fuse)
Regarding the file size, you could just capture the Power Supply section, it would give us a better idea.
Regards
Mirek
Title: Re: Fuse help identification needed
Post by: joesatch on February 26, 2023, 09:52:52 pm
PS section
Title: Re: Fuse help identification needed
Post by: shooter on February 27, 2023, 03:22:28 am
I  would ohm the 35v to ground (NO POWER, discharged)
should be some high-ish ohms, >say 50K ohms
Title: Re: Fuse help identification needed
Post by: Rontone on February 27, 2023, 12:49:08 pm
If you are stuck getting those and need the 63mA, I have a bag of em and can post some over, was fixing a friends rack unit, he ordered a 10 pack but 100 turned up by mistake! bonus

Title: Re: Fuse help identification needed
Post by: joesatch on February 27, 2023, 03:00:39 pm
thanks all i have ordered one  62ma fuse from mouser. cost me $12 with shipping oh well