Glass Radio Antenna Insulators
Click on the 
icon to view a photograph of the insulator. The / designation is used to separate embossing information appearing on opposite sides but on the same end of the insulator. The // designation is used to indicate embossing appearing on the opposite end of the insulator. All dimensions given have been rounded to the nearest 1/8".
Embossed Insulators
A.G.K.
- A.G.K. No 3 {31/2" L x 11/8" Dia., Clear}
- A.G.K. {31/2" L x 11/8" Dia., Clear}
- A.G.K. {31/2" L x 11/8" Dia., Clear}
- A.G.K. {41/2" L x 13/8" Dia., Clear}
- A.G.K. / D.C.J. {41/2" L x 13/8" Dia., Clear}
- A.G.K. No 5 {51/2" L x 11/2" Dia., Clear}
Fleron
- FLERON {33/8" L x 1" Dia., Clear}
- FLERON {4" L x 11/4" Dia., Clear}
Knox
- KNOX / KNOX {31/4" L x 1" Dia., Clear}
- KNOX / KNOX {31/4" L x 1" Dia., Clear}
- KNOX / KNOX {37/8" L x 11/4" Dia., Clear}
- Original Box for Knox 31/4" Strain
LS Brach Mfg Co
- LS BRACH MFG CO // NEWARK N.J. / PAT APLD FOR {31/2" L x 11/4" Dia., Clear}
- LS BRACH MFG CO / NEWARK N.J. // PAT APLD FOR {35/8" L x 13/8" Dia., Clear}
- LS BRACH MFG CO / NEWARK N.J. // PAT APLD FOR {35/8" L x 13/8" Dia., Light Purple SCA}
- LS BRACH MFG CO / NEWARK N.J. // PAT APLD FOR {37/8" L x 13/8" Dia., Purple}
- LC BRACH MFG CO / NEWARK N.J. // PAT APLD FOR {37/8" L x 13/8" Dia., Dark Purple - Embossing Error}
- LS BRACH MFG CO / NEWARK N.J. // PAT APLD FOR {37/8" L x 13/8" Dia., Dark Purple}
Pyrex
- PYREX {35/8" L x 11/4" Dia., Clear}
- PYREX {71/4" L x 17/8" Dia., Clear, Straight Style}
- PYREX {71/4" L x 17/8" Dia., Clear, 5-Rib Style}
- PYREX {71/4" L x 17/8" Dia., Clear, 7-Rib Style}
- PYREX {12" L x 21/4" Dia., Clear, 11-Rib Style}
- PYREX {12" L x 21/4" Dia., Clear, Straight Style}
- Original Box for Pyrex 7" Strain
Various Embossings
- GERMANY {33/8" L x 11/8" Dia., Smoky Clear}
- PAT. PEND. {31/2" L x 11/8" Dia., Clear}
- CONSOLIDATED {31/2" L x 11/8" Dia., Clear}
- INSULA GLASS {33/4" L x 11/4" Dia., Clear}
No Embossing Insulators - Clear
- NO EMBOSSING {3" L x 11/8" Dia., Clear}
- NO EMBOSSING {31/8" L x 1" Dia., Clear}
- NO EMBOSSING {31/8" L x 1" Dia., Clear}
- NO EMBOSSING {33/8" L x 11/8" Dia., Light Straw}
- NO EMBOSSING {31/2" L x 11/8" Dia., Clear}
- NO EMBOSSING {35/8" L x 11/4" Dia., Clear}
- NO EMBOSSING {35/8" L x 11/4" Dia., Clear}
- NO EMBOSSING {35/8" L x 11/4" Dia., Off Clear}
- NO EMBOSSING {33/4" L x 13/8" Dia., Very Light Straw}
- NO EMBOSSING {37/8" L x 11/8" Dia., Clear}
- NO EMBOSSING {45/8" L x 13/8" Dia., Very Light Straw}
- NO EMBOSSING {45/8" L x 13/8" Dia., Clear}
- NO EMBOSSING {5" L x 11/2" Dia., Light Straw}
No Embossing Insulators - Spirals
- NO EMBOSSING {3" L x 1" Dia., Light Straw - Left Hand Spiral}
- NO EMBOSSING {3" L x 1" Dia., Off Clear}
- NO EMBOSSING {3" L x 1" Dia., Clear}
- NO EMBOSSING {3" L x 1" Dia., Ice Green}
No Embossing Insulators - Colours
- NO EMBOSSING {31/8" L x 1" Dia., Light Blue}
- NO EMBOSSING {31/8" L x 1" Dia., Bright Blue
}
- NO EMBOSSING {31/8" L x 1" Dia., Fizzy Light Green}
- NO EMBOSSING {31/8" L x 1" Dia., Green}
- NO EMBOSSING {33/8" L x 11/8" Dia., Very Light SCA }
- NO EMBOSSING {33/4" L x 13/8" Dia., Very Light SCA or Light Pink?}
- NO EMBOSSING {33/4" L x 13/8" Dia., Very Light SCA with Milky String}
- NO EMBOSSING {33/4" L x 13/8" Dia., Light Purple}
- NO EMBOSSING {33/4" L x 13/8" Dia., Dark Green Blackglass}
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![Photograph](javascript:popImage('b','strains/strain-pyrex7-box.jpg','Pyrex 7" Strain Box'))
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