Aw15 questions - EH Scott Radio Enthusiasts2024-03-28T23:18:14Zhttps://ehscott.ning.com/forum/topics/aw15-questions?xg_source=activity&feed=yes&xn_auth=noThis configuration was used b…tag:ehscott.ning.com,2021-04-17:3925821:Comment:1174632021-04-17T18:50:08.865ZThomas Dayhttps://ehscott.ning.com/profile/ThomasDay
<p>This configuration was used by several companies including Hammond organ, which used two 12inch Jensens with different values for the field coils. They also used the quad 2A3 output tubes. I had one of these amps in a Hammond tone cabinet. Later versions used the same speakers, but with a quad 6V6 set of output tubes. I have one of these in service still. </p>
<p>Thom</p>
<p>This configuration was used by several companies including Hammond organ, which used two 12inch Jensens with different values for the field coils. They also used the quad 2A3 output tubes. I had one of these amps in a Hammond tone cabinet. Later versions used the same speakers, but with a quad 6V6 set of output tubes. I have one of these in service still. </p>
<p>Thom</p> Note also, the speaker has 2…tag:ehscott.ning.com,2021-04-12:3925821:Comment:1172322021-04-12T02:19:37.867ZDavid C. Polandhttps://ehscott.ning.com/profile/DavidCPoland
Note also, the speaker has 2 field coils. One in the high voltage circuit, the other is in the bias circuit for the output tubes.
Note also, the speaker has 2 field coils. One in the high voltage circuit, the other is in the bias circuit for the output tubes. Thanks...D-334 is the entire…tag:ehscott.ning.com,2021-04-11:3925821:Comment:1173962021-04-11T00:41:26.394ZKent Kinghttps://ehscott.ning.com/profile/KentKing
<p>Thanks...D-334 is the entire serial number. I can't tell you a lot about the date on this set, no info in the D prefix. However, all the AW15 sets were built from March 1934 to about May/June 1935. Also, if you have not found it - the Scott Info Archive (link near the top of the page) has data on all Scott sets. Look in Set Folders, then in Allwave 15 and you can find all the info on your set. WARNING: AW15 sets vary widely - almost no two are the same. You will NOT find an exact schematic.…</p>
<p>Thanks...D-334 is the entire serial number. I can't tell you a lot about the date on this set, no info in the D prefix. However, all the AW15 sets were built from March 1934 to about May/June 1935. Also, if you have not found it - the Scott Info Archive (link near the top of the page) has data on all Scott sets. Look in Set Folders, then in Allwave 15 and you can find all the info on your set. WARNING: AW15 sets vary widely - almost no two are the same. You will NOT find an exact schematic. But the general info on the sets is good. The AW15 is the worst for this variability - it was a transitional set from the AW Deluxe to the Allwave High-Fidelity. Many experiments...</p> Theres a smudgy spot that cou…tag:ehscott.ning.com,2021-04-11:3925821:Comment:1172252021-04-11T00:00:29.331ZCody Serucsakhttps://ehscott.ning.com/profile/CodySerucsak
Theres a smudgy spot that could be a 1. After that its D-334. And good to know on the power supply.. so it -might- be ok. I have to rewire the tuner as the external wiring is completely shot. Cut/chewed up etc. I can see if i can get some pics loaded up. Beware that power chassis looks ROUGH. I am actually suprised it is doing anything.. i fear the speaker coil is bad. The paper cone is in tact suprisingly. It does move free but from a light load from another source it doesnt appear to respond…
Theres a smudgy spot that could be a 1. After that its D-334. And good to know on the power supply.. so it -might- be ok. I have to rewire the tuner as the external wiring is completely shot. Cut/chewed up etc. I can see if i can get some pics loaded up. Beware that power chassis looks ROUGH. I am actually suprised it is doing anything.. i fear the speaker coil is bad. The paper cone is in tact suprisingly. It does move free but from a light load from another source it doesnt appear to respond to anything. The OT checks out. Along with the audio Xformer within the power chassis. I will see that i can get power running to the tuner chassis at least to check voltages within the power supply. Hopefully it stabilizes where it should be. Luckily the tuner chassis is clean on the inside. Probably the best looking area on the entire unit. I will let my 600v cap in for now. Just in case the voltage doesnt drop where it needs to be. Cody - Do not power the power…tag:ehscott.ning.com,2021-04-10:3925821:Comment:1173922021-04-10T10:53:47.651ZKent Kinghttps://ehscott.ning.com/profile/KentKing
<p>Cody - Do not power the power supply without it being connected to both the set and the speaker. The voltages will be too high without the load of the tuner and this can easily damage the amplifier. Scott sets must be fully connected before applying power unless you use a Variac transformer. With a Variac, you can test the amp separately at a greatly reduced line voltage to protect the components. I usually replace the caps with 10@450v units.</p>
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<p>That said - what is the serial…</p>
<p>Cody - Do not power the power supply without it being connected to both the set and the speaker. The voltages will be too high without the load of the tuner and this can easily damage the amplifier. Scott sets must be fully connected before applying power unless you use a Variac transformer. With a Variac, you can test the amp separately at a greatly reduced line voltage to protect the components. I usually replace the caps with 10@450v units.</p>
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<p>That said - what is the serial number of the tuner? Can you post some pictures for us?</p>
<p>Kent</p>