WOPL Sniffer
Veteran and General Yakker
HUH?
Couldn't that screw short B+ or B- to the chassis?
We have to be pretty dedicated PL fans to forgive a "bone-head" mistake like that---and have it make it all the way into production! I see that the Clair Bros mods were three steps forward and maybe two back! I better not criticize too much, my biggest bone-head moves are probably still ahead of me.
Hi PeterI have been "populating" my back planes and see that C1 and C2 are optional. The 'BOM' says "DO NOT POPULATE these components Optional not necessary"
Is there any reason not to install these caps? Isn't more filtering always better?
Also, regarding B+ and B- fuse size, what is the final word about size. I believe an original manual mentioned that 5 amp fuses are for home use, but 8 amp could be used for heavy service. I have had a couple of Flame Linear events and the DC fuses either held or did not blow quick enough to save the speaker.
Not to 'cheap-out' after all this, but I have an endless supply of 10 amp fuses, is this a foolish idea? (10 amps through 8 ohms is 800 Watts)
Hi Folks;
Progress is slow, but there's no deadline! I have see a (possibly tantalum or some type of non-polarized) cap straddling the bridge. My Clair Bros amps don't have this and I see no mention of it in the WO literature. What are the merits of this seemingly optional feature. If it is a worthwhile addition, could anyone suggest a (range) of values for this cap, if it should be added.
Hi Perry;
Bad coincidence regarding the fuse holders. I took the opportunity tighten the speaker terminals and......fuse holders. Well, the project lost some of it's thrill and the night went a little longer after I broke one of the fuse holders. I transplanted one from my scrap heap, after having rotating the side tab to join to it's neighbor. I guess I'm looking for a set of new fuse holders.
Those caps cut switching noise from the rectifier.What are the merits of this seemingly optional feature. If it is a worthwhile addition, could anyone suggest a (range) of values for this cap, if it should be added.
Driving the PL700 with a balanced signal source. Attached is a proposal for 1/4" TRS input jacks and input cable.