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1. [Amps] Centrifugal Blowers (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Thu, 27 Jan 2022 00:11:39 +0000 (UTC); Hello- Anyone in our group have knowledge of replacing the motor on a centrifugal cooling blower? I have been rebuilding a few RF decks made in the 1970's by Scientific Radio for the SR-416A transm; /archives//html/Amps/2022-01/msg00097.html (7,683 bytes)
2. Re: [Amps] Centrifugal Blowers (score: 1): Author: Jim Kinney <jimkinney@bellsouth.net>; Date: Wed, 26 Jan 2022 19:37:19 -0500; If you can get the motor apart, you might be able to find bearings for it, it's worth a try. Measure the bearing and google the dimensions, inch or mm for the best match. With my W6PO amp, I moved t; /archives//html/Amps/2022-01/msg00098.html (8,218 bytes)
3. Re: [Amps] Centrifugal Blowers (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Thu, 27 Jan 2022 06:23:23 -0600; First, thanks to Paul W9AC and John K5PRO for their accounts. I worked at a FM near Memphis about the same time that was also a 3 KW with 3 rototillers at 300 feet fed with pressurized heliax. That m; /archives//html/Amps/2022-01/msg00101.html (8,412 bytes)
4. [Amps] Centrifugal Blowers (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Thu, 27 Jan 2022 15:03:24 +0000 (UTC); Thanks Guys- I appreciate all the suggestions on repairing my blowers. The units I have are Kooltronics KBB47-5 with a motor #7162-0802. This motor is 3400 RPM at 60 Hz. I am looking for a lower s; /archives//html/Amps/2022-01/msg00102.html (7,804 bytes)
5. [Amps] Centrifugal Blowers (score: 1): Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>; Date: Thu, 27 Jan 2022 07:34:00 -0800; Hello-? ?Anyone in our group have knowledge of replacing the motor on a centrifugal cooling blower? I have been rebuilding a few RF decks made in the 1970's by Scientific Radio for the SR-416A transm; /archives//html/Amps/2022-01/msg00104.html (10,644 bytes)
6. Re: [Amps] Centrifugal Blowers (score: 1): Author: Roger - W7TZ <ai7rogerroger@gmail.com>; Date: Thu, 27 Jan 2022 10:34:19 -0800; I use an RV Sewer Kit plus a square flange interconnect and quick disconnect. I put the blower in a sealed box with one side filtered and located in the attic and brought the hose out of the ceiling; /archives//html/Amps/2022-01/msg00106.html (10,999 bytes)
7. Re: [Amps] Centrifugal Blowers (score: 1): Author: Roger - W7TZ <ai7rogerroger@gmail.com>; Date: Thu, 27 Jan 2022 10:54:35 -0800; I used to have a catalog that described how to slow blowers and it depended on the type of motor. One type you can use a resistor in line, the other type requires the use of an ac capacitor in-line.; /archives//html/Amps/2022-01/msg00107.html (9,341 bytes)
8. Re: [Amps] Centrifugal Blowers (score: 1): Author: Joe <nss@mwt.net>; Date: Thu, 27 Jan 2022 13:08:29 -0600; On mine I have a light bulb in series with the blower, and if temp rises above a set point the bulb is by-passed. Vary the wattage of the bulb till you get the desired speed. Joe WB9SBD / W9ET 73, R; /archives//html/Amps/2022-01/msg00108.html (10,038 bytes)
9. Re: [Amps] Centrifugal Blowers (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Thu, 27 Jan 2022 16:02:20 -0500; I put the blower in a sealed box with one side filtered and located in the attic and brought the hose out of the ceiling to my rack mounted rf decks for v/uhf. Be careful with the "remote blowers".; /archives//html/Amps/2022-01/msg00109.html (11,977 bytes)
10. Re: [Amps] Centrifugal Blowers (score: 1): Author: Jim Klein <k7rdx@charter.net>; Date: Thu, 27 Jan 2022 13:18:45 -0800; EBM is the only choice for my projects...73 all...K7RDX.. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2022-01/msg00110.html (12,869 bytes)
11. Re: [Amps] Centrifugal Blowers (score: 1): Author: donroden@hiwaay.net; Date: Thu, 27 Jan 2022 15:48:50 -0600; On 2022-01-27 9:34 am, jim.thom jim.thom@telus.net wrote: have replaceable bearings..as does the old Rotron CX-33, used on many FM broadcast stations. The CX-33 is still rebuildable, even though out; /archives//html/Amps/2022-01/msg00111.html (8,486 bytes)
12. Re: [Amps] Centrifugal Blowers (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Thu, 27 Jan 2022 23:32:32 +0100; For my as well. G2E085 is the EBM blower model for the 3CX1500A7. G2E120 for 3CX3000A7. Bought my first G2E085 in 1976 for a 4CX1000 amp, price went up by factor 10 since then. I think W8JI sells the; /archives//html/Amps/2022-01/msg00113.html (13,501 bytes)

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