I have a couple of BBC transformers from an old radio broadcast desk for sale.
20 € each (4 pieces / one type 70 €) + shipping (i will ship worldwide; please ask for a quote!)
contact: [email protected]
LL/88 ASC:
35mm in diameter and 40mm in height with bush mount.
ex-BBC audio input, output or isolation transformer
1:1 600:600 Mu-metal can
WHITE Shield
YELLOW-BLUE PRI 32 Ohms DC
RED-GREEN SEC 55 Ohms DC
Primary: Yellow (+) / Blue with the White wire as a centre tap
Secondary: Red (+) / Green
http://groupdiy.com/index.php?topic=47901.msg603814#msg603814
gpultec input
http://groupdiy.com/index.php?topic=52634.msg671800#msg671800
LL/81 M:
26mm in diameter and 24mm in height with bush mount.
1:1 10k:10k bridging transformator (?) Mu-metal can
BLACK Shield
YELLOW+ BLUE- PRI 320 Ohms DC
RED+ GREEN- SEC 411 Ohms DC
Ratio = 1:1
Primary Inductance = 49 Henries
Primary Reistance = 316 Ohms
Secondary Resistance = 405 Ohms
http://groupdiy.com/index.php?topic=40862.msg506487#msg506487
20 € each (4 pieces / one type 70 €) + shipping (i will ship worldwide; please ask for a quote!)
contact: [email protected]
LL/88 ASC:
35mm in diameter and 40mm in height with bush mount.
ex-BBC audio input, output or isolation transformer
1:1 600:600 Mu-metal can
WHITE Shield
YELLOW-BLUE PRI 32 Ohms DC
RED-GREEN SEC 55 Ohms DC
Primary: Yellow (+) / Blue with the White wire as a centre tap
Secondary: Red (+) / Green
http://groupdiy.com/index.php?topic=47901.msg603814#msg603814
gpultec input
http://groupdiy.com/index.php?topic=52634.msg671800#msg671800
LL/81 M:
26mm in diameter and 24mm in height with bush mount.
1:1 10k:10k bridging transformator (?) Mu-metal can
BLACK Shield
YELLOW+ BLUE- PRI 320 Ohms DC
RED+ GREEN- SEC 411 Ohms DC
Ratio = 1:1
Primary Inductance = 49 Henries
Primary Reistance = 316 Ohms
Secondary Resistance = 405 Ohms
http://groupdiy.com/index.php?topic=40862.msg506487#msg506487