http://antiqueradios.com/forums/gallery2.php?g2_view=core.DownloadItem&g2_itemId=98151
Carl T
:In a Crosley Mdl#124 I have a couple of dog bone resitors approx 2in. long with dots on them. Values are 750ohm,15k, and 150,000 ohm but I do not know what wattage they are. By their size I would guess 10W but I cannot find any 10W 150,000 ohm resistors. Any help would be appreciated.
:Thank you,
:Mark
:
But since I can not see all of the 3 that you mentioned.
Sir Mark. . . . .
Newer carbon equivalents exhibit smaller size physical footprints, so those units would expected to be 1 and 2 watt units .
For that 150K , as being a 10 watt rating would be justifuable only if the B+ involved across it was in the 5000 volt range ! . . . I think NOT !
A:
That lower 750 value is dropping the main B+ level down, so it might be up to a 2 watt unit, just to assure its cool operation..
B:
With the 150,000 ohm unit dropping down the lowest B+ voltage, a 1 watt unit should run c o o o o l in that slot.
C:
If that 15 k unit in question, is fulfilling the B+ supply to the 27 osc, down in the extreme left bottom corner of the schematic, a 1 watt unit there would hold up well.
IF all of the same physical sizing, 1 watt seems in order for those highest ohmmage units with a 2 watt used for that 750 unit if it happens to be physically larger that the other 2 units.
73's de Edd
:
:
:
:Mark,
:This picture might help:
:
:http://antiqueradios.com/forums/gallery2.php?g2_view=core.DownloadItem&g2_itemId=98151
:
:Carl T
:
::In a Crosley Mdl#124 I have a couple of dog bone resitors approx 2in. long with dots on them. Values are 750ohm,15k, and 150,000 ohm but I do not know what wattage they are. By their size I would guess 10W but I cannot find any 10W 150,000 ohm resistors. Any help would be appreciated.
::Thank you,
::Mark
::
:
But since I can not see all of the 3 that you mentioned.
Sir Mark. . . . .
Newer carbon equivalents exhibit smaller size physical footprints, so those units would expected to be 1 and 2 watt units .
For that 150K , as being a 10 watt rating would be justifuable only if the B+ involved across it was in the 5000 volt range ! . . . I think NOT !
A:
That lower 750 value is dropping the main B+ level down, so it might be up to a 2 watt unit, just to assure its cool operation..
B:
With the 150,000 ohm unit dropping down the lowest B+ voltage, a 1 watt unit should run c o o o o l in that slot.
C:
If that 15 k unit in question, is fulfilling the B+ supply to the 27 osc, down in the extreme left bottom corner of the schematic, a 1 watt unit there would hold up well.
IF all of the same physical sizing, 1 watt seems in order for those highest ohmmage units with a 2 watt used for that 750 unit if it happens to be physically larger that the other 2 units.
73's de Edd
:
:
:
:Mark,
:This picture might help:
:
:http://antiqueradios.com/forums/gallery2.php?g2_view=core.DownloadItem&g2_itemId=98151
:
:Carl T
:
::In a Crosley Mdl#124 I have a couple of dog bone resitors approx 2in. long with dots on them. Values are 750ohm,15k, and 150,000 ohm but I do not know what wattage they are. By their size I would guess 10W but I cannot find any 10W 150,000 ohm resistors. Any help would be appreciated.
::Thank you,
::Mark
::
:
: : ![]() : : : : : :Sir Mark. . . . . : : :Newer carbon equivalents exhibit smaller size physical footprints, so those units would expected to be 1 and 2 watt units . : : :For that 150K , as being a 10 watt rating would be justifuable only if the B+ involved across it was in the 5000 volt range ! . . . I think NOT ! : : :A: : : :That lower 750 value is dropping the main B+ level down, so it might be up to a 2 watt unit, just to assure its cool operation.. : : :B: : : :With the 150,000 ohm unit dropping down the lowest B+ voltage, a 1 watt unit should run c o o o o l in that slot. : : :C: : : :If that 15 k unit in question, is fulfilling the B+ supply to the 27 osc, down in the extreme left bottom corner of the schematic, a 1 watt unit there would hold up well. : : : :But since I can not see all of the 3 that you mentioned. : : :IF all of the same physical sizing, 1 watt seems in order for those highest ohmmage units with a 2 watt used for that 750 unit if it happens to be physically larger that the other 2 units. : : : : : : : :73's de Edd : : : ![]() : |