| '95' series 'Frankenstein' schematics [message #3375] |
Sat, 27 December 2003 15:24  |
rick
Messages: 6
Registered: December 2003
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Junior Member |
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...hey there, I know it's a LONG shot but does anyone have access to the schematics for the old '95' series 'Frankenstein' heads?...I have one that I bought off of e-bay several months ago and although it's definately a '95RV' (having both reverb & tremelo) I have no idea whether it's a 595RV, 695RV (if that was a good model #) or 795RV being that the i.d. plate on the back is missing (imagine that!)...someone HAS to have these out there somewhere being that there were so many of these heads made, so if anyone has any ideas let me know o.k.?...thanks, Rick...
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| Re: '95' series 'Frankenstein' schematics [message #3402 is a reply to message #3399] |
Wed, 31 December 2003 07:56  |
stevem
Messages: 4775
Registered: June 2004
Location: NY
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Senior Member |
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Hi folks. That is good to know, my head was made with pots dated the 21st week of 1966. And the tag says 695PA. I do not know what reference letters PA means since the amp only has reverb. Hey BILL is that you, If so thanks for the schematic. I find it interesting to note that on the schematic we have the regular reference to the amp being a K200 model, then in the foot notes it brakes it down into submodels. Model 96000 is the basic 2 channel no effect guitar or bass model.96001 has reverb, 96002 is with reverb and vibrato. And heres the real help the schematic has circuit board numbers PC101 is the preamp, all amps use 2 boards.PC 201 is the regulator/ driver board, all amps have one.PC301 is the reverb/vibrato board.and PC401 is just the reverb board. All amps use the same power supply and output section. Their is no mention of anything realted to what the PA type heads may use.These early heads are pretty different, they use a single ended driver feeding a step up transformer that couples to the output transistors. Their are 2 paper type electrolitic caps on two different boards, one being the driver board that should be replaced at once!!!!! in the amp. These caps at best have a life of 5 years, and less if the amp just sits. Thank god they are not run at high tube type voltages, They may not short out and blow up, but they add alot of hum.
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| Re: '95' series 'Frankenstein' schematics [message #3409 is a reply to message #3395] |
Wed, 31 December 2003 15:33 |
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...could very well be as I've heard this suggested before, but the 'frankenstein's were only made from 65' thru 67' (including the tail end of 64' when Bud Ross was making them in his garage I'm told) and that kind of makes as much sense as the prefix #'s indicating the hundred dollar price variants...maybe someone could contact Bud or someone who used to work at the plant in Chanute and find out for sure...Rick...
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| Re: '95' series 'Frankenstein' schematics [message #3410 is a reply to message #3399] |
Wed, 31 December 2003 15:37 |
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...hey Bill, there was a letter prefix in front of the 595, 695, or 795 that indicated what brand of speakers the amp was originally equipped with...it would have been an 'L595RV' for Lansing equipped with reverb, a 'J595RV' with Jensen's and reverb, etc....
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| Re: '95' series 'Frankenstein' schematics [message #3428 is a reply to message #3412] |
Thu, 01 January 2004 16:21 |
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...thanks JC, that makes sense and if you got it straight from the horses mouth (Bud Ross) that must be gospel, but I swear I thought it indicated the year of manufacture...anyway I satnd corrected and thanks for clearing it up for me!...Rick...
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| Re: '95' series 'Frankenstein' schematics [message #3435 is a reply to message #3412] |
Fri, 02 January 2004 00:29 |
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This is a great thread. I found a black Frankenstein head and 2x15 cab for sale w/ reverb and tremolo. It seems to work great but the tremolo is very weak. Is this an easy fix? How much is this rig worth? He's asking $500. Thanks. Brian
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| Re: '95' series 'Frankenstein' schematics [message #3570 is a reply to message #3390] |
Sun, 25 January 2004 16:05 |
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...hey Steve, was just wondering if you'd gotten the self-addressed stamped envelope that I sent you for the copy of the frankenstein schematic that you were going to send me...if you have and have'nt had time to fool with it I understand, but if not let me know and I'll send you another one o.k.?...thanks, Rick...
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| Re: '95' series 'Frankenstein' schematics [message #3637 is a reply to message #3571] |
Wed, 04 February 2004 11:35 |
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Steven-
Thank you so much. I just recieved the schmatic but it's for a K200. I need a 595RV. Is the K200 drawing close enough to use for replacing the reverb pan, the light bulb and photocell for the tremolo, and replacing the mains cord with a two-pronged power cord on a 595RV? While I'm inside this amp digging around are there any caps or other items I should change out? Thanks-John
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| Re: '95' series 'Frankenstein' schematics [message #3656 is a reply to message #3571] |
Fri, 06 February 2004 16:46 |
rick
Messages: 6
Registered: December 2003
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Junior Member |
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...hey Steven, got the schematics you sent me (thanks!) and saw the message from the other guy that you also sent one to about it 'being a K-200 schematic' and his questions about was it close enough to the '95' series to be able to go with it...I was kind of wondering the same myself before I turn it over to the looney toons amp tech here...let us know o.k.? and thanks again!...Rick...
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| Re: '95' series 'Frankenstein' schematics [message #3670 is a reply to message #3656] |
Mon, 09 February 2004 12:01 |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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Don't worry, if Steven sent it to you, it is the right schematic. Remember all "95" model amps were part of the original K200 series, thus the K200 notation in the legend.
If you check the notes on the schematic, number 3 should reference the model 96000. This would be a "95", the 96001 would be a "95RV" and the 96002 would be a "95R".
By the way any tech would know if it was the right schematic in about two minutes, as unlike the later K200's, the 95's have the volume controls wired right at the input of the preamps, and the power amp uses a driver transformer design.
Hope this clears up the confusion. Bill form Chicago.
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| Re: L1195 series 'Frankenstein' schematics [message #5032 is a reply to message #5029] |
Fri, 05 November 2004 13:23 |
boogie brother
Messages: 11
Registered: June 2004
Location: Myrtle Beach, SC (USA)
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Junior Member |
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I tried emailing Steve also at the email address he gave out on the forum, but it came back as "undeliverable". Steve, if you see this, please email me: rmsproductionsmb@earthlink.net
I also need the info on the old 745PA head I just got. Does anyone know where I can get two fuse holder caps for this? Also what SIZE fuses fit these amps (3 & 5 amp) normal "size" dont seem to work!
Boogie Brother
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| Re: '95' series 'Frankenstein' schematics [message #5058 is a reply to message #3375] |
Sat, 13 November 2004 19:11 |
stevem
Messages: 4775
Registered: June 2004
Location: NY
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Senior Member |
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Hello to all.Things have changed lattly,I no longer work for altel where my old e-mail was, and my own computer is dead. So I have to use my girl friends computer for now. The best way to get a schematic from me for now is to mail me a stamped envelope to p o box 1160 yorktown hts NY 10598.As far as fuses go, I am pretty sure that they take the 3AG style fuse in a 3 and 5 amp rating as does my frank head. But I got to tell you folks, only if you run the amp at a 4 ohm load would I keep that 5 amp fuse in the head. If you run the head at 8 ohms I would get may be a 3.5 amp fuse and run it on that if it does not prematurly blow. At least if you run the 5 amp fuse make sure someone before you did not put in a 5 amp slow blow type fuse. It would say slow blow on one or the other metal end of the fuse.Fuse caps are not sold with out the whole assy. The original kustom ones where made by the buss company, so you can get the whole assy from ampares or from mouser sales and just use the cap as long as its a twist and not a screw on replacement assy.Just remember these frank heads have speaker fuses due to them not having built in output circiut protection like the latter amps, so it pays to play it safe. Sometimes an output transistor blows faster than the fuse!
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