Search found 19 matches

by permeke
Thu Apr 09, 2020 9:11 am
Forum: JLM Audio Kits
Topic: variable pad kit with a V672 , will it nicely work confused
Replies: 6
Views: 7530

Re: variable pad kit with a V672 , will it nicely work confused

thanks Joe for the fast reply. Will check
by permeke
Thu Apr 09, 2020 7:53 am
Forum: JLM Audio Kits
Topic: variable pad kit with a V672 , will it nicely work confused
Replies: 6
Views: 7530

Re: variable pad kit with a V672 , will it nicely work confused

Old thread I know but I have a slight scratching noise on my B500K pot from minimum to 1/3 of the turn.
Could it be DC ?
Also eliminating the trim, you say bridge point 4 and 5 on the circuit but I can't find it but I guess I'm right with bridging the ones that gives minimum gain.

thanks
by permeke
Tue Apr 14, 2015 7:34 pm
Forum: JLM Audio Kits
Topic: variable pad kit with a V672 , will it nicely work confused
Replies: 6
Views: 7530

Re: variable pad kit with a V672 , will it nicely work confu

thanks joe.Now I understand the matching
by permeke
Tue Apr 14, 2015 8:37 am
Forum: JLM Audio Kits
Topic: variable pad kit with a V672 , will it nicely work confused
Replies: 6
Views: 7530

variable pad kit with a V672 , will it nicely work confused

want to add an input attenuator on my V672 and was thinking about using the variable input pad kit. But now I'm confused because the dual pot is 1K and I've seen somewhere on a different forum Joe's commenting on his gobetween kit when used with a V672, replacing the 470R resistors with 2x 2200 R to...
by permeke
Sun Apr 05, 2015 9:26 am
Forum: JLM Audio Kits
Topic: Fet DI , can I lower the supply voltage ?
Replies: 0
Views: 7899

Fet DI , can I lower the supply voltage ?

Hi guys,
For some reason I need to feed my Fet DI with a supply other than the 48V.
Can I feed a lower voltage , say 24-30V to it so it still activates the relay ?
Any components I should change ?
thanks
by permeke
Tue Jul 01, 2014 4:19 am
Forum: JLM Audio Kits
Topic: struggling with Go between and Fet DI
Replies: 1
Views: 4321

struggling with Go between and Fet DI

I can't get my head around this: Go between with Fet DI. Gobetween works as it should be with microphone input and with the two bridge adaptors on the 10 pin connector. Gobetween and Fet DI connected with the flat cable: DI input works , Mic input doesn't. Did I connected the flat cable the wrong wa...
by permeke
Wed Dec 25, 2013 10:00 am
Forum: JLM Audio Kits
Topic: VU BUFFER & PEAK LED KIT BUILD THREAD
Replies: 102
Views: 112312

Re: VU BUFFER & PEAK LED KIT BUILD THREAD

just wondering if there is a mod on this pcb to alter the limit behaviour of the meter used. let me explain, I have some vintage meters that I want to use , but somehow when they are at full scale , they got stuck at the very end. think it's a mechanical thing. If I could adjust the response so that...
by permeke
Sun Nov 24, 2013 4:32 am
Forum: JLM Audio Kits
Topic: Go Between and Go Between Plus kit BUILD THREAD
Replies: 33
Views: 59302

Re: Go Between and Go Between Plus kit BUILD THREAD

can't find the proper thread for the DI kit, but asking here anyway.
the jack socket hole is 12 mm.
How much is the the diameter on the front with the nut and plastic round thing.
I'm asking because I need t make a layout for labelling

thanks
by permeke
Sun May 20, 2012 6:57 am
Forum: JLM Audio Kits
Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
Replies: 221
Views: 293900

Re: LA500 opto comp leveling amp BUILD THREAD 500/51X

When unlinked , my 2 builds are compressing and tracking equal on both sides when feeding 1Khz.
When linked , master unit gives 3dB more compression, slave 3 less !
any idea ?
by permeke
Fri May 18, 2012 8:34 am
Forum: JLM Audio Kits
Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
Replies: 221
Views: 293900

Re: LA500 opto comp leveling amp BUILD THREAD 500/51X

solved ( wrong resistor value :oops: )
by permeke
Wed Jul 13, 2011 9:19 pm
Forum: JLM Audio Kits
Topic: AC/DC & POWERSTATION KIT BUILD THREAD
Replies: 322
Views: 382691

Re: AC/DC & POWERSTATION KIT BUILD THREAD

thanks
by permeke
Wed Jul 13, 2011 9:39 am
Forum: JLM Audio Kits
Topic: AC/DC & POWERSTATION KIT BUILD THREAD
Replies: 322
Views: 382691

Re: AC/DC & POWERSTATION KIT BUILD THREAD

Have some nice 30V AC transfomers here .Question. I need only +24V. Will once rectified ( if my calculatiion is correct should give me around 40 VDC ) not too much as Vin for the LM317 ? and if so , can I put a resistor at the AC side to bring down the voltage? One on each leg ? Advice welcome. thanks
by permeke
Tue Apr 26, 2011 9:20 pm
Forum: JLM Audio Kits
Topic: Go between kit 2 questions
Replies: 8
Views: 10687

Re: Go between kit 2 questions

I deleted the post that was originally here.
Again I discovered a wrong wiring thingy.
best regards
by permeke
Sun Apr 24, 2011 3:42 am
Forum: JLM Audio Kits
Topic: Go between kit 2 questions
Replies: 8
Views: 10687

Re: Go between kit 2 questions

Hi everyone. Two questions about the Go between kit. Build when smoothly , all functions are working properly but I have a loud click when switching 48 on. Bad cap , ground issue ? Phantom power will always make a click or pop as you are powering up the microphone which is unpredicable as it powers...