{"id":13373,"date":"2019-03-27T00:00:00","date_gmt":"2019-03-26T23:00:00","guid":{"rendered":"https:\/\/pihernz.com\/product\/recambio-super-star-3900-4\/"},"modified":"2026-07-07T10:51:58","modified_gmt":"2026-07-07T08:51:58","slug":"recambio-super-star-3900-4","status":"publish","type":"product","link":"https:\/\/pihernz.com\/en\/producto\/recambio-super-star-3900-4\/","title":{"rendered":"Super Star 3900 Premium Dual-Concentric Potentiometer \u2013 Replacement Mic Gain & RF Gain Control Assembly (Legacy Pre-2020 Model Spare Part)"},"content":{"rendered":"

The Super Star 3900 premium dual-concentric potentiometer<\/strong> is a commercial-grade analogue service component precision-engineered to restore high-integrity signal control and baseline modulation levels to classic transceivers. Specifically designed as a direct replacement part for the **Mic Gain \/ RF Gain control path**, this specialized concentric component features independent resistance configurations on a stacked axis, allowing operators to simultaneously adjust microphone input levels and receiver sensitivity without introducing crosstalk. It serves as a vital infrastructure component for service laboratories, telecommunication technicians, and high-volume B2B radiocommunication accessory wholesale distribution networks specializing in legacy transceiver fleet maintenance.<\/p>\n

The technical architecture of this variable resistor is purpose-built to fit the hardware configurations of the **legacy Super Star 3900 radio (manufactured prior to 2020)**. Featuring a durable concentric inner and outer shaft assembly made of high-quality machined metal, it includes a threaded brass mounting collar and precision-spaced terminal lugs to guarantee smooth solder flow and rigid PCB or chassis alignment. By swapping out scratchy, worn, or degraded variable pots with this premium component, technicians can fully resolve intermittent receiver attenuation and uneven voice modulation, ensuring long-term tactical reliability in the field.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Technical Specification Parameter<\/th>\nValue & Fleet Alignment Matrix<\/th>\n<\/tr>\n<\/thead>\n
Primary Component Classification<\/td>\nDual-Concentric Stacked Variable Resistor \/ Potentiometer<\/td>\n<\/tr>\n
Dedicated Functional Interface<\/td>\nCombined Microphone Gain (Mic Gain) & Radio Frequency Gain (RF Gain)<\/td>\n<\/tr>\n
Mechanical Shaft Configuration<\/td>\nDual-axis coaxial concentric metal shaft with standard flat D-cut ends<\/td>\n<\/tr>\n
Mounting Hardware Interface<\/td>\nThreaded brass installation collar block<\/td>\n<\/tr>\n
Termination Node Typology<\/td>\nMulti-pin parallel solder terminals on a layered substrate matrix<\/td>\n<\/tr>\n
Verified Hardware Compatibility Scope<\/td>\nLegacy Super Star 3900 CB\/Amateur Radio Mobile Stations (Pre-2020 Era Layouts)<\/td>\n<\/tr>\n
Primary Fleet Maintenance Purpose<\/td>\nTurnkey bench restoration, replacement of static or damaged control pots, elimination of signal tracking noise, and legacy transceiver outfitting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Old Super Star 3900 spare part<\/p>\n","protected":false},"featured_media":24284,"template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","inline_featured_image":false,"_joinchat":[]},"product_brand":[12161],"product_cat":[12300,12275],"product_tag":[12985],"class_list":{"0":"post-13373","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-super-star-en","7":"product_cat-recambios-super-star-3900-en-old","8":"product_cat-accesorios-emisoras-en","9":"product_tag-cb-en","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"acf":[],"yoast_head":"\nSuper Star 3900 Replacement Potentiometer | Mic-RF Gain | B2B<\/title>\n<meta name=\"description\" content=\"Source the professional Super Star 3900 replacement potentiometer. This dual-concentric Mic\/RF gain spare part is built for legacy pre-2020 transceivers. B2B stock.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pihernz.com\/en\/producto\/recambio-super-star-3900-4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Super Star 3900 Replacement Potentiometer | Mic-RF Gain | B2B\" \/>\n<meta property=\"og:description\" content=\"Source the professional Super Star 3900 replacement potentiometer. This dual-concentric Mic\/RF gain spare part is built for legacy pre-2020 transceivers. B2B stock.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pihernz.com\/en\/producto\/recambio-super-star-3900-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Pihernz Comunicaciones\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pihernz.comunicaciones\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-07T08:51:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pihernz.com\/wp-content\/uploads\/2019\/03\/R004_NOBRAND_NOMODEL_set.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"334\" \/>\n\t<meta property=\"og:image:height\" content=\"266\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@pihernz\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/recambio-super-star-3900-4\\\/\",\"url\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/recambio-super-star-3900-4\\\/\",\"name\":\"Super Star 3900 Replacement Potentiometer | Mic-RF Gain | B2B\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/recambio-super-star-3900-4\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pihernz.com\\\/en\\\/producto\\\/recambio-super-star-3900-4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pihernz.com\\\/wp-content\\\/uploads\\\/2019\\\/03\\\/R004_NOBRAND_NOMODEL_set.jpg\",\"datePublished\":\"2019-03-26T23:00:00+00:00\",\"dateModified\":\"2026-07-07T08:51:58+00:00\",\"description\":\"Source the professional Super Star 3900 replacement potentiometer. 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