Post by Ron Rich on Dec 17, 2018 15:06:20 GMT
Gentz,
FUSING SUGGESTIONS !!!!!!
Since Seeburg was so stingy on "fusing" here are some suggestions to better protect the mostly NA transformers, AND the wiring that catches fire ( maybe the cabinets too !)
EDIT:(Ron Rich) The power transformer for the TSR/TSU series units may still be available-- contact me, if you need one.
--by Rob/NYC
25 VAC: 4 amp-slo
150 VAC (thyratron tube plates) 1 amp-fast
5 VAC (decorative lights) 3 or 4 amp-slo, you can use less if only a few lights such as a model 201..**
6.3 Volt tube heaters, I use 5 amp-slow The HFMA1 draws a just over 3 amps for heaters.
150 VAC (thyratron tube plates) 1 amp-fast
5 VAC (decorative lights) 3 or 4 amp-slo, you can use less if only a few lights such as a model 201..**
6.3 Volt tube heaters, I use 5 amp-slow The HFMA1 draws a just over 3 amps for heaters.
By me--
--on "fusing"-- The M-100 and HF 100 series SAU ("pinbank") type, phonos, when using a WSR-5, have paper markings as to fuse sizes-- The "main" fuse, if only one display florescent lamp is used, should be a 3 A FB. If the pilasters are also lit, and motorized, use a 5 A FB. Also, IMHO, a good idea to fuse the motor only, at 1 A FB. The "CCU fuse", is marked "2 A,SB". --this IS, too high, and WILL allow, SAU coils to burn up--MAX on this fuse is 1.6 SB ! --I attempt to use a 1.0, SB, or slightly higher value (NOTE: the fuse clip holding this fuse tends to "become weak", and often should be replaced !). I also fuse the "cancel coils/pop meter coils" at 1/2 ( if no pop meter coil is connected,1/4 amp)--SB. WSR-7, as marked on chassis, except the 1 a SB fuse is, and should remain a 1 amp.
On the TUBE, type Tormat units--Split off the transformer AFTER, the main 5 A, MTH fuse--use a 2.5--3 A, SB type fuse here ! Use a 1/2 amp SB on the rectifier, if you change it ( also true on SAU type phono's ). Add a 3 amp FB fuse AT, the latch bar solenoid, "hot" side, probably not needed, IF, an electronic "free play unit" (STRONGLY SUGGESTED !!)-(not the "cheapie", plug only, type !), is used, but it won't hurt ! If not there-- add a 2 amp SB to the primary side of the transformer circuit for the 5U4 in the amplifier, if not already there. Add a 1 amp FB in series with the the Detent/Trip coil-- these coils are getting very hard to get ( "250 ohms", and are NOT the same, as on other models 6 + ohms) !
On the Solid State phono's-- Change the 15 amp fuse in the control center to a 7.5 A--MAX ( true also of the TCC equipped phono's--)(most will operate fine with a 5 A FB). Latch bar suggestions, same as above.
On the "MicroLog" models--SEE my MicroLog trouble shooting guide, as fuse size varies from one model to the next ! --be sure the fuse in the snap holder, by the transformer, does NOT exceed 7.5 A,FB !
On SMC models--- Reduce the main fuse to 5 amps, reduce the 6/10 (motor fuse) to 1/2.
On ALL "SHP type" amplifiers-- Reduce the main fuse ( either a "Red-cap", or "normal" style) to 2 amps SB
** Note: This is the "main" ( and on Tube type, Tormat units, the only ) fuse in the phono for the WSR or TSR/TSU equipped phono's !!(RR)
"N"type (3.2 amp, in Seeburg's case) fuses are dangerous ! If good, or in some other cases, the tops of this type fuse has power on it at all times !
There is also a very slim chance a transformer has shorted, and has full 117 VAC on that metal exposed tab-- BE CAREFUL !!
BTW--NONE, of the above, should not be considered as a positive, sure thing, that will prevent damage--it should do so, but, no gar-un teez !!
HTH---
Ron Rich
