Yep. Very loud. A lot like hot-patching the input.JR. wrote:Gotcha... that could damage mics and phantom powered external gear expecting the 6.8k
Definitely not good...
JR
THAT1570/5171 DIP Adapter
- mediatechnology
- Posts: 5472
- Joined: Sat Aug 11, 2007 2:34 pm
- Location: Oak Cliff, Texas
- Contact:
Re: THAT1570/5171 DIP Adapter
Re: THAT1570/5171 DIP Adapter
Ok no worse than normal... to outside world.
JR
JR
Cancel the "cancel culture", do not support mob hatred.
Re: THAT1570/5171 DIP Adapter
Yes, but you see, the main reason for the double phantom resistors in figure 2 was that the caps do NOT discharge while the phantom is on, because I want to switch between the transformer and transformerless "seamlessly". I don't want to recharge C5 and C6 upon switching back from "transformer path" because there will be a significant DC offset and at high preamp gains that will not be pleasant to hear. It would take over a second to settle, which doesn't allow for smooth A/B-ing of both paths by the end-user. Therefore figure #1 is "better" in this sense, because it allows me to switch rapidly between the two paths and DC offset is minimal, comparing to fig.2.JR. wrote:you could move the phantom resistors over to the XLR in fig 2 also, while it is not usual to leave unused inputs floating, Over time the caps will discharge to 0v due to internal leakage.
- mediatechnology
- Posts: 5472
- Joined: Sat Aug 11, 2007 2:34 pm
- Location: Oak Cliff, Texas
- Contact:
Re: THAT1570/5171 DIP Adapter
Take a quick look at this article:
http://www.waynekirkwood.com/Images/pdf ... itters.pdf
What you're doing is similar to a split.
Do re-draw RE6B when you get the chance. Pins 5 and 7 aren't right.
Wouldn't you want the pad ahead of the transformer and C5/C6? Or is the point to overdrive the transformer?
Why not put the transformer on the "dry" (right-hand) side of the capacitors and then do a transformer bypass? When "in transformer mode" C5/C6 are in series with the primary. (C5/C6 could also be bypassed.) That solves the loading problems and should help your phantom wet-switching issues.
http://www.waynekirkwood.com/Images/pdf ... itters.pdf
What you're doing is similar to a split.
Do re-draw RE6B when you get the chance. Pins 5 and 7 aren't right.
Wouldn't you want the pad ahead of the transformer and C5/C6? Or is the point to overdrive the transformer?
Why not put the transformer on the "dry" (right-hand) side of the capacitors and then do a transformer bypass? When "in transformer mode" C5/C6 are in series with the primary. (C5/C6 could also be bypassed.) That solves the loading problems and should help your phantom wet-switching issues.