{"id":43149,"date":"2020-05-04T08:07:21","date_gmt":"2020-05-04T12:07:21","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=43149"},"modified":"2020-05-04T08:07:21","modified_gmt":"2020-05-04T12:07:21","slug":"pete-seeks-rechargeable-battery-pack-options-for-his-wellbrook-loop-antenna","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2020\/05\/pete-seeks-rechargeable-battery-pack-options-for-his-wellbrook-loop-antenna\/","title":{"rendered":"Pete seeks rechargeable battery pack options for his Wellbrook loop antenna"},"content":{"rendered":"
\"\"<\/a>

Paul Walker’s battery-powered Wellbrook antenna in remote Alaska.<\/p><\/div>\n

Many thanks to SWLing Post<\/em> contributor, Pete Jernakoff, who writes:<\/p>\n

[…]I’m hopeful that one of your readers might be able to suggest a solution to my problem.<\/p>\n

I have an older Wellbrook Communications active loop antenna that is powered by a 12 v AC-to-DC, center pin negative, plug-in power supply (Stancor AC Adapter, was supplied with the antenna).<\/p>\n

I’d like to power the antenna from a rechargeable battery in order to make the antenna portable and to eliminate any noise that might be emanating from said power supply (which, as an aside, runs very warm when in operation).<\/p>\n

My problem is that I cannot find any rechargeable batteries (lithium ion preferred) with a center pin negative output. All of the ones that I can find online have center pin positive outputs (such as the TalentCell 12V\/6000mAh rechargeable battery that I’ve purchased to power my other, more recently produced, Wellbrook Communications active loop antenna whose amp needs a center pin *positive* input).<\/p>\n

Thanks in advance for consideration of my request. Btw, love your blog! I’ve been an avid reader of it for quite some time now.<\/p><\/blockquote>\n

Post readers:<\/strong> If you have any suggestions for Pete, please comment with any relevant links to help him make the purchase. I’m guessing Pete isn’t interested in re-soldering a coaxial plug for negative tip polarity at this point.<\/p>\n

By the way, I used a photo of Paul Walker’s Wellbrook at the top of this post because I recall that when he lived in Alaska<\/a>, he powered his Wellbrook loop with a rechargeable pack (and during the winter, I also recall he struggled to keep it warm enough to provide power for any length of time!). Perhaps Paul can comment.<\/p>\n

I’m so glad you enjoy the SWLing Post<\/em>, Pete!<\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post contributor, Pete Jernakoff, who writes: […]I’m hopeful that one of your readers might be able to suggest a solution to my problem. I have an older Wellbrook Communications active loop antenna that is powered by a 12 v AC-to-DC, center pin negative, plug-in power supply (Stancor AC Adapter, was supplied […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3607,3,43],"tags":[1643,4357,4045,4301,8493,5471],"class_list":["post-43149","post","type-post","status-publish","format-standard","hentry","category-antennas","category-news","category-shortwave-radio","tag-antennas","tag-mag-loop-antennas","tag-pete-jernakoff-k3kms","tag-wellbrook","tag-wellbrook-battery-power","tag-wellbrook-loop"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-bdX","jetpack-related-posts":[{"id":27082,"url":"https:\/\/swling.com\/blog\/2017\/07\/portable-powerhouses-comparing-the-bonito-boni-whip-and-wellbrook-ala1530lnp-antennas\/","url_meta":{"origin":43149,"position":0},"title":"Portable Powerhouses: Comparing the Bonito Boni Whip and Wellbrook ALA1530LNP Antennas","author":"Guy Atkins","date":"July 13, 2017","format":false,"excerpt":"One fits in a car (well, most vehicles anyway) and another easily slides into a small daypack; which antenna is best for DXing on-the-go? The ALA1530LNP and Boni Whip are at opposite ends of the portability scale (as well as the price scale). I've written about the ALA1530LNP in the\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/MtRainier-1024x576.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/MtRainier-1024x576.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/MtRainier-1024x576.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":53814,"url":"https:\/\/swling.com\/blog\/2022\/08\/matts-2022-portable-loop-antenna-shootout\/","url_meta":{"origin":43149,"position":1},"title":"Matt’s 2022 Portable Loop Antenna Shootout","author":"Thomas","date":"August 28, 2022","format":false,"excerpt":"Many thanks to\u00a0SWLing Post\u00a0contributor,\u00a0Matt Blaze, for the following guest post: Matt's 2022 Portable Loop Antenna Shootout by Matt Blaze, WB2SRI Followers of this blog may be familiar with my \"shortwave radio shootouts\" that I post from time to time. The idea is to compare how well different radios demodulate the\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/Matt-Blaze-Loops-Sound-Designs-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/Matt-Blaze-Loops-Sound-Designs-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/Matt-Blaze-Loops-Sound-Designs-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/Matt-Blaze-Loops-Sound-Designs-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2022\/08\/Matt-Blaze-Loops-Sound-Designs-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":30672,"url":"https:\/\/swling.com\/blog\/2018\/02\/indoor-shortwave-antenna-options-to-pair-with-a-new-sdr\/","url_meta":{"origin":43149,"position":2},"title":"Indoor shortwave antenna options to pair with a new SDR","author":"Thomas","date":"February 9, 2018","format":false,"excerpt":"Many thanks to SWLing Post contributor, Chris Freitas, who writes: \"I am thinking of the new RSP1A SDR. Would you know of a good indoor antenna that would work well with it?\" Your antenna question is simple, but the answer is complex! First off, I think the RSP1A is a\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/11\/RSP1A1-1024x708.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/11\/RSP1A1-1024x708.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/11\/RSP1A1-1024x708.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/11\/RSP1A1-1024x708.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":39725,"url":"https:\/\/swling.com\/blog\/2019\/09\/david-reviews-and-compares-the-mla-30-magnetic-loop-antenna\/","url_meta":{"origin":43149,"position":3},"title":"David reviews and compares the MLA-30 magnetic loop antenna","author":"Thomas","date":"September 18, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, David Day (N1DAY), who has completed a thorough review of the MLA-30 loop antenna. In this review, he compares the MLA to the Wellbrook ALA1530-LF and a 30 foot square ground loop antenna. In short, he finds that the MLA-30 performs fairly well on\u2026","rel":"","context":"In "Antennas"","block_context":{"text":"Antennas","link":"https:\/\/swling.com\/blog\/category\/antennas\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/09\/mla30_3-e1568805326349.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/09\/mla30_3-e1568805326349.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/09\/mla30_3-e1568805326349.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/09\/mla30_3-e1568805326349.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":48108,"url":"https:\/\/swling.com\/blog\/2021\/03\/the-signal-sweeper-how-to-build-a-portable-wellbrook-loop-antenna\/","url_meta":{"origin":43149,"position":4},"title":"The “Signal Sweeper”: How to build a portable Wellbrook loop antenna","author":"Thomas","date":"March 9, 2021","format":false,"excerpt":"Many thanks to SWLing Post contributor, Matt Blaze, for the following guest post: The \"Signal Sweeper\", a portable Wellbrook antenna setup by Matt Blaze Here's a very simple construction project that's really improved my travel shortwave and mediumwave listening experience. When I go somewhere interesting (whether a day trip on\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/03\/Signal-Sweeper-Wellbrook-Matt-Blaze-1-scaled-e1615289428872.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/03\/Signal-Sweeper-Wellbrook-Matt-Blaze-1-scaled-e1615289428872.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/03\/Signal-Sweeper-Wellbrook-Matt-Blaze-1-scaled-e1615289428872.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/03\/Signal-Sweeper-Wellbrook-Matt-Blaze-1-scaled-e1615289428872.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/03\/Signal-Sweeper-Wellbrook-Matt-Blaze-1-scaled-e1615289428872.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":43070,"url":"https:\/\/swling.com\/blog\/2020\/04\/wellbrook-power-supply-source\/","url_meta":{"origin":43149,"position":5},"title":"Wellbrook power supply source?","author":"Thomas","date":"April 29, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, David Goren, who writes: I need a new power supply for one of my Wellbrook loop antennas. Do you know of good source for reliable ones? I forgot where I obtained the last replacement which worked fine until the wire attaching to the plug\u2026","rel":"","context":"In "Accessories"","block_context":{"text":"Accessories","link":"https:\/\/swling.com\/blog\/category\/accessories\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/01\/Mark-Wellbrook-Mag-Loop-Antenna.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/01\/Mark-Wellbrook-Mag-Loop-Antenna.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/01\/Mark-Wellbrook-Mag-Loop-Antenna.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/01\/Mark-Wellbrook-Mag-Loop-Antenna.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/43149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=43149"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/43149\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=43149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=43149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=43149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}