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grid choke comparisons
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Posted on July 7, 2011 at 10:45:33 | ||
I'm looking to hear anyone's comparisons/evaluations of the various available grid chokes. For my experiments I'd consider using them in two places: DHT power tube grid, and (DHT or IHDT) driver which is driven by a TVC (AVC). Also considering the center tap of a Silk type to provide a step-up, knowing this will double the effective output impedance of the source, but if low enough already (mu out CCS) then I see no issue. Who has tried this with good results? compared to? Was a perceivable loss of highs detected in step up mode directly compared to the "normal" use of the same choke? If not Silk, then what compares or excedes? thanks in advance. |
RE: grid choke comparisons, posted on July 7, 2011 at 17:04:34 | |
What's the output impedance of what is driving them? |
RE: grid choke comparisons, posted on July 7, 2011 at 18:37:37 | |
Anyone try these? |
RE: Yes, I've tried these and others ..., posted on July 8, 2011 at 07:43:10 | |
Posts: 5480
Location: Schenectady Joined: June 6, 2002 |
Naz Can you say direct coupling. DanL ![]() |
RE: those are a bargain, posted on July 8, 2011 at 07:45:50 | |
Posts: 5480
Location: Schenectady Joined: June 6, 2002 |
GSH Nope you are good. Just wanted to establish the limitations for the record. DanL ![]() |
RE: Yes, I've tried these and others ..., posted on July 9, 2011 at 03:32:39 | |
As above trans. I have them everywhere. |
RE: those are a bargain, posted on July 9, 2011 at 04:08:36 | |
orright have ta try sum. btw if you have the proper input trans you dont need a step up gsh :) |
RE: Yes, I've tried these and others ..., posted on July 10, 2011 at 02:24:01 | |
Thanks guys. I am getting my scope out before I try them.Indeed there somthing that needs carful testing. |
wait, posted on July 11, 2011 at 08:32:57 | |
The Silk Supermalloys you are using have 3 taps, right? |
RE: wait, posted on July 11, 2011 at 12:24:26 | |
No just a centre tap... Al |
RE: those are a bargain, posted on July 12, 2011 at 09:02:28 | |
I've never even considered grid chokes for push pull :) I suppose the Silks have tons of inductance when used this way Al |
RE: DDDDDduh, posted on July 12, 2011 at 09:03:34 | |
Windings have a start and a finish , anything in between is a tap Al |
I guess I confused taps with tabs, apologies (nt), posted on July 12, 2011 at 18:49:26 | |
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