Posts: 1,193
Threads: 49
Joined: Oct 2017
City: Allendale, MI
Interestingly, I set my 70 (unmodified) next to the 570 and fed it the same signal. Aside from the typical 70 issues, it has a better high frequency response. So, now I'm going to do some audio testing on the 570 to see if the audio amp section is rolling off the highs. Or maybe my Celestion speaker cone is not so good! I may have to swap speakers to see what that does. Also, maybe I'll change that 220 pf cap to a 100 pf in the detector circuit. Lots of stuff to play with.... fun!
Messages In This Thread
RE: Philco 570 - by rfeenstra - 06-12-2019, 10:14 PM
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Recent Posts
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Atwater-Kent 84, restoration.
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| Hello Mike,
Wow ! far as my AK it does work and the cabinet is in nice shape so is my chassis anyway here is a photo of...radiorich — 02:59 AM |
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Atwater-Kent 84, restoration.
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| Nice radio, Mike! Here's hoping it was well rebuilt. Take care and BE HEALTHY! GaryGarySP — 12:12 AM |
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Atwater-Kent 84, restoration.
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| Rich
yes, this is the way I got it. I have just put it on the table and took it apart.
I suspect it even might work,...morzh — 11:31 PM |
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Atwater-Kent 84, restoration.
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| Hello mike,
What nice looking radio I have one AK in my collection it's a console I have not started restoring it yet ....radiorich — 11:21 PM |
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91H Code 126 Restore
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| Just to make it more confusing here is another model 91 schematic that doesn't show parts with dotted lines in that spot...Arran — 10:37 PM |
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Atwater-Kent 84, restoration.
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| The wires were desoldered from the can, and the capacitors checked. All checked at 0.102 uF, which is correct.
So the c...morzh — 09:41 PM |
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An attempt to remove the Field Coil from a G speaker
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| Arran
Yours probably then the H speaker, same as mine.morzh — 08:39 PM |
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An attempt to remove the Field Coil from a G speaker
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| Mike;
I would like to have a look at the speaker in my model 96, but the set is packed into a corner in the basement. ...Arran — 08:04 PM |
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91H Code 126 Restore
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| Thanks Arran,
I'm convinced the power cord is good but have a nice repro plug for it. Would it be prudent to add a fus...RealRider — 07:28 PM |
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91H Code 126 Restore
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| As I was studying this schematic I was wondering what does this dotted line means? I haven't traced it out yet.
An o...RealRider — 07:22 PM |
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