vintageHIWATTconvention.com

all are in good condition w. no known issues, no voice coil rubbing, etc. prices do not incl. shipping. I will trade for vintage Vox Alnicos. - '60s Vox/Celestion 10" 15Ω … $150pr - '70s Fane 10" 8Ω … $300 (all 3) - recent Eminence 10" 8Ω … $50pr - JBL D120F grey frame (fact. recone) ...

now on ebay. $1 no reserve... http://shop.ebay.com/basementalrecords/ ... ksid=p4340

amp has now been recapped & is 100%. circuit has been returned to stock. will be offered up for sale again, loaded w. Weber FC12. fresh set of =C= SED power tubes. loud & proud. $1450 shipped & pp'd to CONUS

might be worth finding a small swatch (say on a dominator combo) & taking to a custom auto upholstery shop. may also be expensive as a 1 off. may also be a worthy business venture if someone is willing to offer quality repro fabric to gilmour fans far & wide

happy to say... no more "issues w. my new FL112"!

time to button it up. need to address a few minor cabinet issues, so the plinth/chassis is more stable. I think I'm going to load it w. the Weber FC12, as it's much lighter than the EV.

thx for all the help here...

thx petor. great suggestion.

ok... so thru a series of trial & error, I kept increasing the value of the 47k resistor, until I hit the magic number 470k. the amp now idles between 38-40ma & plate voltage is approx. 470DCV. so, 1. am I "allowed" to do this? seems to work, but is it OK? 2. if not OK, then why? i...

thx mark,
I found some online of others who breadboarded the circuit.

re: the quick & dirty - when I did this (w. a 20k pot) it only gave me about 4ma of variance. can I use a higher value pot (100k)? or add something else in line?

hey mark,
I've been using SED/=c= since the recent work & getting these numbers. tried the 20k pot this AM with no better results. are there any pictures of the voltage doubler circuit? I know you have the schem. on your site, but a photo always helps me as a beginner.

thx,
al

one other question - can I simply go for the "quick & dirty" mod & insert the 20k pot?

I resumed details of repair work on the orig. thread re: this amp -
viewtopic.php?f=2&t=812

it's been a long time since I've posted on this thread (& a long time since I've been able to do any work on this amp), but... - finally finished recap - returned preamp tag board to stock - retubed the good news: the amp works! also, my DCV came down to 458! however: the bias current is still i...

now on ebay: http://shop.ebay.com/basementalrecords/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340 brand new (& awesome). project will not see light of day. will also incl. a VHR logo (not mounted). $345.67 shipped to CONUS or trade for vox/jmi/ncm ac30 cab (head or combo, pref...

fuses are fine. I did notice that when I crank the volumes, I can just hear the signal coming thru. also, one of the power tubes (far L if tubes are facing up) glows a little brighter than the others when not in standby (running). these power tubes are brand new, winged c's. I'm sure I must've misse...

:cry: no sound... :?: checked all variables. used known tubes, speaker, cable, etc. here are a few pix of my work. anything look suspect? (recapped & addressed the preamp tagboard that had been worked on) http://i86.photobucket.com/albums/k117/alschnier/hiwattFL112/DSC08406.jpg http://i86.photob...