Roger There are plenty of old ex Marine es Military headphones about that are suitable. 2000 ohms was a common imp for the older headphones. S G BROWN was a common make in the past plus a variety of
Hi Roger, you are talking about kit from the good ol' days when things had to be made sensitive :-)) I think those uints have a quite high impedance (5 to 10k??) a fairly narrow range cetainly no mor
Roger There are plenty of old ex Marine es Military headphones about that are suitable. 2000 ohms was a common imp for the older headphones. S G BROWN was a common make in the past plus a variety of
Dear Roger, LF Group, Is there a "modern" (i.e. can you buy it new today?) headphone set that is * extremely* sensitive in the same way that the old DLR5 headsets were in terms of efficiency converti
Jim What a most fascinating and informative reply. I had no idea that it was possible to hear such weak signals "by ear". I learn something new every day. Thank you. 73s Roger G3XBM -- Via my iPod To
Try these Roger. http://xtalman.com/headsets.html 4400 ohm imp. Or build an audio amplifier ? 73 es GL Pete M0FMT IO91UX From: mal hamilton <[email protected]> To: [email protected] Se
Roger The DLR5 is nothing special the Z is only around 50 ohms whereas S G Brown and similar are 2000Z. Plenty of old headphones still about g3kev -- Original Message -- From: [email protected]
