{"id":9470,"date":"2024-01-16T07:10:39","date_gmt":"2024-01-16T05:10:39","guid":{"rendered":"https:\/\/hex.ro\/wp\/?p=9470"},"modified":"2024-01-16T07:11:18","modified_gmt":"2024-01-16T05:11:18","slug":"esvepe-radio-repair","status":"publish","type":"post","link":"https:\/\/hex.ro\/wp\/blog\/esvepe-radio-repair\/","title":{"rendered":"Esvepe Radio – Repair"},"content":{"rendered":"\n

While waiting for more parts to come through to advance on various projects, I decided to have a look at this very cheaply bought radio.<\/p>\n\n\n\n

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Overview – As Bought<\/figcaption><\/figure>\n\n\n\n

This ESVEPE Radio seems so rare, I only found a single mention on the internet, a Polish website which was selling a different model.<\/p>\n\n\n

Visual inspection<\/h2>\n\n\n

There is another label on the bottom which was missing its markings, but it is almost identical with two other labels that are inside:<\/p>\n\n\n\n

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Serial number ?<\/figcaption><\/figure>\n\n\n\n

A look inside reveals a torn battery clip (the negative wire is disconnected), unmarked transistors and a rather minimalist design.<\/p>\n\n\n\n

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I could only spot one electrolytic capacitor, but it measured good. A paralleled brand new capacitor didn’t improve anything, thus I left it in place.<\/p>\n\n\n

9V battery clip fix<\/h2>\n\n\n

I didn’t have a suitable 9V battery clip. I do in fact, but not blue color. And why to risk cracking old plastic by taking the board out just to swap the clip ?<\/p>\n\n\n\n

To fix the battery clip I used a small scissor to cut the back side to get access to the mini-circuit board, soldered the negative wire to its terminal, fill the gap with some hot melt glue. While the glue was still hot, I put the flap back.<\/p>\n\n\n\n

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Salvaging an old 9V battery clip<\/figcaption><\/figure>\n\n\n

Alignment<\/h2>\n\n\n

The radio has poor selectivity. You have to microscopically turn the tuning dial, otherwise you skip many stations.<\/p>\n\n\n\n

I decided to try an alignment. Even if the IF cans were covered with small round sticky paper cut-outs, I found somebody was there before. The wax was was showing signs if previous screw-drivers:<\/p>\n\n\n\n

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For alignment, I used the TinySA Ultra, paired with a small telescopic antenna positioned closed to the AM antenna of the radio. I found the radio to be almost perfectly aligned. So I just put the paper “lids” back.<\/p>\n\n\n\n

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TinySA Ultra – AM Modulation alignment<\/figcaption><\/figure>\n\n\n\n

In conclusion, the Radio has very poor selectivity, thus, not really pleasant to use. Applied a bit of contact cleaner on the Volume pot (which surprisingly was not scratchy), rerouted the headphone jacks under the 9V battery support, and clipped the back case onto the radio:<\/p>\n\n\n\n

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Since I am far from AM emitters and since the radio is hard to get it on station, I made use Tecsun AN- 200 Loop Antenna. There should be more stations out there (I tested during night time), but I kinda gave up fiddling with the tuning dial:<\/p>\n\n\n\n

ESVEPE Radio – Tests<\/figcaption><\/figure>\n\n\n\n

Few more shots:<\/p>\n\n\n\n

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ESVEPE Radio<\/figcaption><\/figure>\n\n\n\n
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In closing, a cheap radio, which … probably never worked right because of the tuning dial jerkiness. Thus, it didn’t get much use and looks pristine.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

While waiting for more parts to come through to advance on various projects, I decided to have a look at this very cheaply bought radio. This ESVEPE Radio seems so rare, I only found a single mention on the internet, a Polish website which was selling a different model. Visual inspection There is another label […]<\/p>\n","protected":false},"author":1,"featured_media":9504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,54],"tags":[],"class_list":["post-9470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-flea-markets","category-radios"],"_links":{"self":[{"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/posts\/9470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/comments?post=9470"}],"version-history":[{"count":4,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/posts\/9470\/revisions"}],"predecessor-version":[{"id":9505,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/posts\/9470\/revisions\/9505"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/media\/9504"}],"wp:attachment":[{"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/media?parent=9470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/categories?post=9470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hex.ro\/wp\/wp-json\/wp\/v2\/tags?post=9470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}