Alembic Guitars Club

Alembic products => Alembic Basses & Guitars => Topic started by: jazzyvee on October 16, 2015, 08:39:58 AM

Title: PF5 & PF6 electronics
Post by: jazzyvee on October 16, 2015, 08:39:58 AM

All i know is one is newer than the other but thats it. What do they do and whats the difference?.  Ive bought a 1980 series 1 and wondered which electronics will it have and what is the newer one doing differently.

Title: PF5 & PF6 electronics
Post by: lbpesq on October 16, 2015, 09:16:28 AM

As I understand it, the older electronics are just fine unless you are getting RF interference.  There is a lot more RF around today than back then.  It seems that each instrument and each locale is different.  Neither my '76 Series I MSG, nor my '77 Series I LSG 12 string exhibits the interference problem.  Accordingly, I have not had them upgraded.  Wolf's  (Sonicus) recently purchased #33 bass picked up the RF interference in the studio where he bought it, but doesn't have the problem in my studio or other places.
 
Hope this helps.
 
Bill, tgo

Title: PF5 & PF6 electronics
Post by: edwardofhuncote on October 16, 2015, 09:18:51 AM

I'll be reading this too... PF-5 was replaced by PF-6 pretty early on, (1974-75??) but I always wondered what the difference between the two was.  
 
If I understand correctly, with the PF-5 set the trimpots are accessible from the front of the instrument rather than the backplate. Also the battery box was located between the pickups where the hum-cancellers later went.

Title: PF5 & PF6 electronics
Post by: room037 on October 16, 2015, 09:42:15 AM

The last PF-5 is 73'-047 SSB, the first PF-6 is 74'-048 SSG.
 
Eiji

Title: PF5 & PF6 electronics
Post by: sonicus on October 16, 2015, 09:55:02 AM

Hello Friends ,  Bill tells the story above as well !  
Yes , ___I love my PF-5 electronics # 73-32 . I recently played her at a coffee house type gig  and she sounded great and remained quite RF /EMI noise wise.  The rehearsal studio where I first met her was another story where  she displayed noise &  and proudly presented several  RF transmissions simultaneously . Nonetheless it was love at first sight and we left together with her previous protectors blessing ,  I was a lucky man !  
 
Wolf

Title: PF5 & PF6 electronics
Post by: edwin on October 16, 2015, 11:32:08 PM

I'm wondering if there is any difference in the input impedance or anything like that. It occurs to me that I am currently using pickups that were most likely designed around PF5 electronics, but I have a PF6 board. I get noise sometimes.