1928 model
Neutrowound Radio Mfg. Co.; Homewood
- Country
- United States of America (USA)
- Manufacturer / Brand
- Neutrowound Radio Mfg. Co.; Homewood
- Year
- 1927
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 49694
- Number of Tubes
- 6
- Main principle
- TRF without regeneration
- Tuned circuits
- 3 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Metal case
- from Radiomuseum.org
- Model: 1928 model - Neutrowound Radio Mfg. Co.;
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 860 x 150 x 220 mm / 33.9 x 5.9 x 8.7 inch
- Notes
- Two pointer tuning knobs.
- Net weight (2.2 lb = 1 kg)
- 10 kg / 22 lb 0.4 oz (22.026 lb)
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Mentioned in
- Radio Manufacturers of the 1920's, Vol. 2
- Other Models
-
Here you find 11 models, 8 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Neutrowound Radio Mfg. Co.; Homewood
Forum contributions about this model: Neutrowound Radio: 1928 model
Threads: 1 | Posts: 3
I've been wrestling with a 28 and a hand drawn schematic from Radio Museum.
I believe there has to be an error in the ground/common between the 2 front end RF amps and the rest of the radio. The radio wiring is correct against the schematic. However, the radio was previously updated at detector transformer and the dual 0.5uf caps.
Using an ARBEIII the radio has some strange behavior. The connection of my ground rod at the 100ft long wire causes loud 60hz hum. Removing the ARBE's 3rd wire green stops the hum. The sensitivity is very low. Antenna, tubes, power are correct and used in a Deforest MR-6
What concerns me is the lack of consistent grounding. The dual caps have common ground yet are not directly tied to the radio's common ground
If anyone has a few minutes and possible knows this radio can you take a look at the schematic grounding and see if that looks correct or if an drawing error exists.
Thanks in advance
Jack KG6INX
Jack McMullen, 23.Jun.15